?propulsion

propulsion 發(fā)音

英：[pr?'p?l?(?)n]　　美：[pr?'p?l??n]

英：　　美：

propulsion 中文意思翻譯

propulsion 短語(yǔ)詞組

1、reaction propulsion ─── 反作用力推進(jìn)

2、turboelectric propulsion ─── [機(jī)] 輪機(jī)電力推進(jìn)

3、Interplanetary Spacecraft Propulsion System ─── 星際航天器推進(jìn)系統(tǒng)

4、propulsion system ─── 推進(jìn)系統(tǒng)，動(dòng)力裝置

5、jet propulsion ─── [機(jī)] 噴射推進(jìn)

6、self-propulsion n. ─── 自力推進(jìn)

7、reaction-propulsion engine ─── [網(wǎng)絡(luò)] 反酌發(fā)動(dòng)機(jī)

8、Propulsion Wind Tunnel Facility ─── 推進(jìn)風(fēng)洞設(shè)施

9、rocket propulsion ─── [機(jī)] 噴射推進(jìn), 噴射推進(jìn)方式

10、jet propulsion laboratory ─── [計(jì)] 噴氣推進(jìn)實(shí)驗(yàn)室

11、chemical propulsion ─── [化] 化學(xué)推進(jìn)

12、Aerospace Propulsion ─── 航空 ─── 航天推進(jìn)

13、Propulsion Wind Tunnel ─── 推進(jìn)機(jī)風(fēng)洞

14、Geosynchronous Solar Electric Propulsion Stage ─── 地球同步太陽(yáng)能電力推進(jìn)階段

15、propeller propulsion ─── [機(jī)] 螺旋推進(jìn)

16、jet propulsion fuel ─── [化] 噴氣燃料; 噴氣式飛機(jī)燃料

17、propulsion bond ─── [電] 推進(jìn)電流回路圈

18、propulsion efficiency ─── [機(jī)] 推進(jìn)效率

19、nuclear propulsion ─── 核推進(jìn)

propulsion 詞性/詞形變化，propulsion變形

形容詞: propulsive |

propulsion 相似詞語(yǔ)短語(yǔ)

1、repulsion ─── n.排斥；反駁；反感；厭惡

2、profusion ─── n.豐富，充沛；慷慨

3、propulsor ─── n.推進(jìn)物；推進(jìn)器

4、propulsions ─── n.推進(jìn)；推進(jìn)力

5、propulsive ─── adj.推進(jìn)的；有推進(jìn)力的

6、prolusion ─── n.預(yù)演，序幕；序言

7、propensions ─── 物業(yè)

8、propension ─── 財(cái)產(chǎn)

9、retropulsion ─── n.后退

propulsion 常見例句（雙語(yǔ)使用場(chǎng)景）

1、George P,Sutton.Rocket Propulsion Elements.Sixth Edition. ─── 任漢芬,劉國(guó)球,等.液體火箭發(fā)動(dòng)機(jī)原理.北京:宇航出版社,1993,6.

2、Bradford J, Olds J.SCCREAM v.5: a web-based airbreathing propulsion tool[R].AIAA 99-2104. ─── 葉中元,黃伏軍,董建明.多模態(tài)沖壓發(fā)動(dòng)機(jī)提高性能的技術(shù)途徑[J].推進(jìn)技術(shù),2001,22(6).

3、The foundation education course that accompany with the propulsion reforms, the "dialogue" causes people concern again in the value in the teaching. ─── 伴隨著基礎(chǔ)教育課程改革的推進(jìn)，“對(duì)話”在教學(xué)中的價(jià)值再次引起人們的關(guān)注。

4、Application of high-speed shadowgraph technology to flow field evolvement diagnosis of laser propulsion[J]. ─── 引用該論文 葉繼飛,王廣宇,文明,洪延姬,崔村燕.

5、If propulsion is not improved and streamline is, then a swimmer will go faster. ─── 如果推進(jìn)力沒有改善而流線型有所改善,那游泳運(yùn)動(dòng)員會(huì)游的更快。

6、Kv will depend on a multitude of technological aspects of the design of the vehicle and of its propulsion system. ─── Kv的值取決于有關(guān)反行器及其推進(jìn)系統(tǒng)設(shè)計(jì)的許多技術(shù)問題。

7、It provides basic energetic reactions for powering the ships systems, thrusters and hyperspace propulsion. ─── 它提供了基本的動(dòng)力，用于驅(qū)動(dòng)飛船系統(tǒng)，助推器和超空間驅(qū)動(dòng)器。

8、Especially in field of marine electric propulsion, HTS synchronous AC motors of MW class or even tens of MW class have been or will be delivered to U. ─── 尤其在艦船電力推進(jìn)領(lǐng)域,兆瓦級(jí)甚至數(shù)十兆瓦級(jí)高溫超導(dǎo)同步交流電動(dòng)機(jī)已經(jīng)或即將交付海軍使用。

9、Their humbler followers, such as partridges, have a like power of strong propulsion, but soon tire. ─── 它們的低級(jí)同類，如鷓鴣，有一種同樣大的推動(dòng)力，但很快就疲勞了。

10、Experimental and Numerical Study of Air-Breathing Mode Propulsion by Solid Nd:Glass Nanosecond Pulse Laser[J]. ─── 引用該論文 Shi Lei,Zhao Shanghong,Chu Xingchun,Wu Jili,Li Xiaoliang,Li Guojie.

11、The track pin is an important component for transferring load in the propulsion device of a self-propelled gun. ─── 履帶銷是自行火炮推進(jìn)裝置中重要的傳力元件。

12、A train's propulsion drive system provides the vehicle's traction and dynamic braking performance. ─── 列車的牽引驅(qū)動(dòng)系統(tǒng)為車輛提供了牽引和動(dòng)態(tài)制動(dòng)性能。

13、Technical requirement on propulsion shafting align. ─── 內(nèi)河船舶推進(jìn)軸系校中技術(shù)要求。

14、Company reason but treat the package industry marketplace objectively developing, Take seriously the brand manages with overall image propulsion. ─── 公司理性而客觀地看待包裝行業(yè)市場(chǎng)發(fā)展，重視品牌經(jīng)營(yíng)和整體形象推進(jìn)。

15、So people have paid their attention on robofish propulsion system which has more advantages than propellers. ─── 因此，在推進(jìn)系統(tǒng)方面，人們把目光投向了比傳統(tǒng)的螺旋槳推進(jìn)更具優(yōu)勢(shì)的仿生推進(jìn)系統(tǒng)。

16、The powertrain includes Bucher Hydraulics propulsion pump plus one single roped propulsion ram, and oil supply pipes by Leistritz, Germany. ─── 動(dòng)力系統(tǒng)包括Bucher Hydraulics驅(qū)動(dòng)泵連單一纜索式驅(qū)動(dòng)臂，以及德國(guó)Leistritz供油管。

17、Moreover, these networks have also been used in a neuromechanical model simulating actual locomotion with propulsion and steering. ─── 此外，這些網(wǎng)絡(luò)模擬還被用于一個(gè)神經(jīng)機(jī)械學(xué)模型來(lái)模擬包含有推進(jìn)和方向控制部分的真實(shí)運(yùn)動(dòng)。

18、The powertrain including the propulsion ram is inaudible inside the car giving a smooth and quiet ride. ─── 動(dòng)力裝置包括驅(qū)動(dòng)臂在客卡內(nèi)是聽不到的，令搭乘顯得暢順及寧?kù)o。

19、Mott, I.K. and Fleeting,R., “Design Aspect of Marine Propulsion Shafting System”, The Institute of Marine Enginneers, June,1967. ─── “商船機(jī)關(guān)部軸系標(biāo)準(zhǔn)之解說(shuō)”，關(guān)西造船協(xié)會(huì)造機(jī)研究委員會(huì)編，海文堂。

20、It can be foresaw that the study on PM motor will promote the development of marine electric propulsion in recent ten or twenty years. ─── 與直流電機(jī)相比，永磁電機(jī)具有體積小、重量輕、可靠性高等優(yōu)點(diǎn)，越來(lái)越成為船舶電力推進(jìn)的研究熱點(diǎn)。

21、In 1939 the turbojet brought an entirely new method of propulsion. ─── 1939年，渦噴發(fā)動(dòng)機(jī)引入了一種全新的推力方法。

22、If propulsion is improved and streamline is, then a swimmer will go fastest of all. ─── 如果推進(jìn)力和流線型都有所改善,那游泳運(yùn)動(dòng)員將會(huì)游的比上兩種更快。

23、"Propulsion, " the nine-year-old says as he leads his dad through the gates of the U. S. Space and Rocket Center in Huntsville, Alabama. ─── “推進(jìn)，”九歲的小男孩一邊說(shuō)，一邊帶著父親穿過(guò)阿拉巴馬亨茨維爾太空火箭中心的大門。

24、Since such a lowly satellite would suffer from atmospheric drag, it would need its own propulsion system and a decent supply of fuel. ─── 如此低空飛行的衛(wèi)星會(huì)受到大氣層的拖贅，本身需要推進(jìn)系統(tǒng)和足夠的燃料。

25、It uses the same J-85 engine as its propulsion system but has a twin, outwardly canted vertical tail similar to the Boeing F/A-18. ─── 它使用相同的J-85發(fā)動(dòng)機(jī)當(dāng)做它的動(dòng)力但是雙發(fā)飛機(jī)，機(jī)身上的傾斜垂尾類似波音F/A-18。

26、Thus, the "Coanda Effect" was discovered and Coanda himself quickly experimented with it before filing for three new propulsion patents in 1938. ─── 因此， “ coanda效應(yīng)”的發(fā)現(xiàn)和coanda自己盡快試行，然后申請(qǐng)三個(gè)新的推進(jìn)專利于1938年。

27、AIP (Air Independent Propulsion System) system provides effective solutions for power system of conventional submarine. ─── 不依賴空氣的推進(jìn)系統(tǒng)，即AIP(Air Independent Propulsion System)系統(tǒng)的出現(xiàn)為常規(guī)潛艇的動(dòng)力系統(tǒng)提供了有效的解決方案。

28、Faith is the impulsion, the propulsion of this power within. ─── 信念是一種激勵(lì)，是對(duì)你內(nèi)心巨大能量的一種激勵(lì)。

29、A control surface that may be moved into the propulsion stream of a rocket in order to change the direction of thrust. ─── 射流偏轉(zhuǎn)舵一種可被移進(jìn)火箭推進(jìn)氣流中以改變其沖力方向的控制平面

30、Oil and water in main engine, auxiliary machinery and boiler which is necessary for propulsion purpose directly all up to working level. ─── 主機(jī)、輔機(jī)和鍋爐中供直接用于推進(jìn)目的加至工作液面的必要的油和水。

31、Propulsion is provided by a rocket engine, rather than a propeller and rudder, which makes steering difficult. ─── 推進(jìn)器是由火箭發(fā)動(dòng)機(jī)提供的，而不是螺旋槳和方向舵，這使得轉(zhuǎn)向變得困難。

32、In this paper the torsional vibration problems of the propulsion shaft system of the underwater craft were discussed. ─── 主要討論以擺盤式活塞發(fā)動(dòng)機(jī)作為其主機(jī)的某水下航行裝置推進(jìn)軸系的扭轉(zhuǎn)振動(dòng)問題。

33、Their humbler followers,such as partridges,have a like power of strong propulsion,but soon tire. ─── 它們的低級(jí)同類，如鷓鴣，有一種同樣大的推進(jìn)力，但很快就疲勞了。

34、Product type:AmericanCUMMINSoriginal package import ship launches machine with the propulsion. ─── 產(chǎn)品類型：美國(guó)康明斯原裝進(jìn)口船用推進(jìn)發(fā)動(dòng)機(jī)。

35、Accordingly, the propulsion that quickens unifinication has important sense to East Asia economy. ─── 因此,加速一體化的推進(jìn)對(duì)于東亞經(jīng)濟(jì)具有重要的意義。

36、The authors point out the advantages of the system and introduces the application of some popular podded electric propulsion systems. ─── 同時(shí)介紹了當(dāng)前幾種主流的船舶吊艙式電力推進(jìn)器的應(yīng)用情況。

37、The results obtained here provide a reference for the application of detonation in the hypersonic propulsion. ─── 當(dāng)前研究為爆轟燃燒在高超聲速推進(jìn)中的應(yīng)用提供了重要參考。

38、In the long-side position there is no propulsion being effected. ─── 在長(zhǎng)的身體姿勢(shì)時(shí)并無(wú)推進(jìn)力產(chǎn)生。

39、This model, however, remains tethered to the ground at all times, as it has not been equipped with a propulsion system. ─── 然而這個(gè)飛行器一直拴在地面，因?yàn)檫€沒有裝備推進(jìn)系統(tǒng)。

40、What type of fuel is used for main propulsion? ─── 主推進(jìn)裝置使用何種燃油?

41、Then the applications of waterjet propulsion in modern ships are enumerated. ─── 列舉了噴水推進(jìn)在現(xiàn)代各國(guó)艦船上的應(yīng)用;

42、And last May, NASA's Jet Propulsion Laboratory in Pasadena, California, was invaded by hackers yet to be identified. ─── 去年五月，位于加州帕薩迪納的宇航局噴氣推力實(shí)驗(yàn)室受到黑客入侵，至今仍未水落石出。

43、The cardinal principles of levitation and propulsion of the magnetic levitation(maglev) vehicle are presented. ─── 對(duì)磁懸浮列車的提升和推進(jìn)的原理作簡(jiǎn)要介紹.

44、Since such a lowly satellite would suffer from atmospheric drag, it would need its own propulsion system and a decent supply of fuel. ─── 如此低空飛行的衛(wèi)星會(huì)受到大氣層的拖贅，本身需要推進(jìn)系統(tǒng)和足夠的燃料。

45、Weis-Fogh mechanism is an efficient method to generate high lift or propulsion. ─── Weis-Fogh機(jī)構(gòu)能夠高效率地產(chǎn)生升力或推力。

46、The essential quality that dictates the choice of this propulsion system is readiness. ─── 決定選用這種推進(jìn)系統(tǒng)的主要因素就是其簡(jiǎn)便性。

47、A method for optimization design of water-jet propulsion systems based on pump database is developed. ─── 開發(fā)一種基于水泵數(shù)據(jù)庫(kù)的噴水推進(jìn)系統(tǒng)的優(yōu)化設(shè)計(jì)方法。

48、He also wrote other papers on the subject and dealt with the resistance encountered by ships and ship propulsion. ─── 他在這個(gè)題目上連寫了一些別的文章，處理船受到的阻力和船的推力。

49、The result can reasonable explain the "blanch" Phenomena and plasma instability in laser propulsion experimentation that is mentioned in some paper. ─── 以氫氣和氫氬爲爲工質(zhì)進(jìn)行了算例計(jì)算，計(jì)算結(jié)果可對(duì)國(guó)外文獻(xiàn)提到的試驗(yàn)中出現(xiàn)的等離子體“漂白”和等離子體不穩(wěn)定現(xiàn)象進(jìn)行合理的解釋。

50、We bll keep our professional service, the good credit, the innovation, the rigorous attitude, the practical spirit as o_ propulsion. ─── 公司以專業(yè)，誠(chéng)信，創(chuàng)新，嚴(yán)謹(jǐn)，務(wù)實(shí)的精神不斷進(jìn)取；

51、Another approach to propulsion and steering has been demonstrated by Orlin Velev of North Carolina State University and his collaborators. ─── 另一種推進(jìn)與操控方式，是由美國(guó)北卡羅來(lái)納州立大學(xué)的維列夫（OrlinVelev）所提出。

52、Many principles of jet propulsion apply regardless of whether air or water is the fluid used. ─── 不論所使用的流體是空氣還是水,噴射推進(jìn)的許多原則都是適用的。

53、Ram accelerator is a propulsion technology for accelerating projectile to ultrahigh velocity using chemical energy of propellant gaseous mixture. ─── 沖壓加速器是利用預(yù)混可燃?xì)怏w燃燒釋放的化學(xué)能將彈丸加速的超高速發(fā)射裝置 .

54、Azimuth rotating steering rudder and podded electric propulsion system is a novel marine propulsion system. ─── 全回轉(zhuǎn)舵槳合一、吊艙式電力推進(jìn)裝置是新穎的船舶動(dòng)力裝置。

55、Andrea Donnellan of NASA's Jet Propulsion Laboratory, Pasadena, Calif, remembers the morning of January 17, 1994, like few others. ─── 住在寧?kù)o的山丘居民社區(qū)家中的她像其他成千上萬(wàn)的南加州居民一樣，在睡夢(mèng)中被一場(chǎng)強(qiáng)烈的地震震醒了。

56、At 3,000,000km from Geodesa the crafts Hyper Spatial Propulsion Drive is engaged and the ship disappears from Deltan medium range telemetry. ─── 在距離吉德薩300萬(wàn)的地方，超級(jí)空間推進(jìn)器裝置與此銜接了，然后飛船在德爾塔中級(jí)遙感裝置中消失了。

57、This requires guiding into and along the surface (pipe) floats, as well as propulsion and a parking brake. ─── 這要求導(dǎo)入和沿著表面（管）漂浮，既需要推力也需要停止閘。

58、The AIR JORDAN 2009 incorporates a new, innovative technology in basketball footwear called Articulated Propulsion Technology, or APT. ─── 在喬丹2009年采用了新的，創(chuàng)新性技術(shù)的籃球鞋稱為鉸接式推進(jìn)技術(shù)，或APT。

59、Controllers at NASA's Jet Propulsion Laboratory (JPL) have a tradition of opening a bag of peanuts for good luck, and the moment had come to do so. ─── NASA噴射推進(jìn)實(shí)驗(yàn)室（JPL）的傳統(tǒng)里，控制人員會(huì)打開一袋花生以求好運(yùn)，該這麼做的時(shí)刻已經(jīng)到了。

60、Main propulsion engine not provided strictly the jacketed piping system and the collection system to F.O. Leaking. ─── 主機(jī)高壓油管沒有護(hù)套保護(hù)裝置。

61、Preliminary analysis shows that the propulsion force is relative to serval factors, such as liquid viscousness, drive fin wet area and offset, etc. ─── 分析表明,魚形微機(jī)器人推進(jìn)力與流體的粘性系數(shù)、擺翼面積和偏移角等因素有關(guān)。

62、The application of electric propulsion system in China s geostationary satellite in the future is a necessary trend. ─── 在未來(lái)靜止軌道平臺(tái)上應(yīng)用電推進(jìn)系統(tǒng)是我國(guó)航天事業(yè)發(fā)展的必然趨勢(shì)。

63、Picking is the propulsion of the shuttle from one side of the loon to the other to put in the pick. ─── 引緯是梭子從織機(jī)的一端引入緯紗到另一端的一個(gè)推動(dòng)過(guò)程。

64、A bacterium that drifts away from the right level must swim back, and so, like many of its cousins, the microbe wields a whiplike tail for propulsion. ─── 偏離了理想深度的細(xì)菌，就必須游回原來(lái)的位置。因此，如同它們的許多近親一樣，這種細(xì)菌會(huì)揮動(dòng)鞭子般的尾部，向前推進(jìn)。

65、The operation principle, performance parameters, developing history an d status of ion propulsion are introduced. ─── 介紹離子式電推進(jìn)的工作原理、性能參數(shù)、發(fā)展歷史和現(xiàn)狀。

66、You can see the propulsion ram with the Bucher Hydraulics brand badge attached. ─── 你可以見到驅(qū)動(dòng)臂連上面附有的Bucher Hydraulics水牌；

67、POWERED PARAGLIDER : A paraglider with means of propulsion capable of launching it and sustaining flight. ─── 動(dòng)力飛行傘：一種配備推進(jìn)手段得以發(fā)射和維持飛行的飛行傘。

68、If its levitation, guidance and propulsion system are its “l(fā)imbs”, Maglev operation control system (MOCS) is its “brain and nerve”. ─── 如果其懸浮、導(dǎo)向和驅(qū)動(dòng)系統(tǒng)是支撐磁懸浮列車運(yùn)行的“四肢”，那么磁懸浮列車運(yùn)行控制系統(tǒng)（MOCS：Maglev Operation Control System）則是支持列車運(yùn)行的“大腦和神經(jīng)”。

69、Solar ship can be separated into forehead Solar power system and propulsion and monitoring system astern. ─── 中文摘要太陽(yáng)能船可概分為前端太陽(yáng)能電池發(fā)電系統(tǒng)，以及后端之推進(jìn)與監(jiān)控系統(tǒng)。

70、The course then proceeds into advanced propulsion concepts, ranging from chemical to electrical engines. ─── 在接下來(lái)的課程里，我們將繼續(xù)討論先進(jìn)推進(jìn)系統(tǒng)的概念，包含化學(xué)火箭引擎到電子火箭引擎。

71、Engineers and scientists at Nasa's Jet Propulsion Laboratory in California clapped and cheered when the landing signal came through. ─── 當(dāng)?shù)顷懶盘?hào)傳來(lái)時(shí)，加利福尼亞美國(guó)宇航局噴氣動(dòng)力試驗(yàn)室的工程師和科學(xué)家們?yōu)榇硕恼坪蜌g呼。

72、The main research direction of Professor Zhan Jialiang is : Propulsion system of spacecraft. ─── 主要研究方向：航天器推進(jìn)系統(tǒng)研究。

73、Relating to or composed of two or more propulsion units. ─── 多階段的有關(guān)兩種或者多個(gè)推進(jìn)器的、或者由其組成的

74、Therefore the SMMC Rudder Propeller is a combined propulsion and steering unit,so that the full thrust is available in any direction for the ship. ─── 因此SMMC舵槳集推進(jìn)功能和操舵功能于一體，能使船舶在任何方向都能獲得最大推力。

75、Scientists and engineers are beginning to study this ability of fishes in the hope of designing more efficient propulsion systems for ships. ─── 科學(xué)家和工程師們開始研究魚類的這種能力，希望能設(shè)計(jì)出更有效的船舶推進(jìn)系統(tǒng)。

76、Therefore, it is imperative to develop more efficient and reliable propulsion system for EVs and HEVs. ─── 為充份展現(xiàn)馬達(dá)性能，使用了三種策略，第一，以反電動(dòng)勢(shì)作為驅(qū)動(dòng)電流波形以得到最大的輸出力矩；

77、The subtleties of movements to maintain propulsion in the most economical manner would be lost if one adopted an exaggerated side position. ─── 如果此人用了一個(gè)夸張得一側(cè)姿勢(shì)那將使以一個(gè)省力方法產(chǎn)生推進(jìn)力的動(dòng)作的精妙之處盡失。

78、Scientists and engineers at the control center in the Jet Propulsion Laboratory in Pasadena, California, cheered. ─── 守候在加利福尼亞州帕薩迪納噴氣推進(jìn)實(shí)驗(yàn)室控制中心的科學(xué)家和工程師們發(fā)出了一陣歡呼。

79、Their humbler followers, such as partridges have a like power of strong propulsion. ─── 它們的低級(jí)同類，如鷓鴣，有一種同樣大的推進(jìn)力。

80、Since the appearance of POD electric propulsion system, it injects new life into marine propulsion system. ─── 吊艙式電力推進(jìn)系統(tǒng)的出現(xiàn),給船舶推進(jìn)系統(tǒng)注入了新的活力。

81、Compared with rocket motor, the solid energetic materials in the process of laser ablative propulsion has a higher energy. ─── 與火箭推進(jìn)方式相比，固體含能材料激光燒蝕推進(jìn)方式的能量利用效率更高。

82、Research of laser propulsion technology used in orbited space mobile carrier[J]. ─── 引用該論文 石磊,趙尚弘,方紹強(qiáng),胥杰,李勇軍,李應(yīng)紅.

83、Adduction of the upper arm to maximize forward propulsion. ─── 內(nèi)收上臂以產(chǎn)生最大的向前推進(jìn)力。

84、The test platform will be an important platform used to studying the mechanism and control of the long flexible fin undulatory propulsion. ─── 論文研究的測(cè)試平臺(tái)將為柔性長(zhǎng)鰭波動(dòng)推進(jìn)機(jī)理及控制技術(shù)研究提供重要試驗(yàn)平臺(tái)。

85、Space Propulsion begins with a review of rocket propulsion fundamentals. ─── 在太空推進(jìn)這門課里，我們將以回顧火箭推進(jìn)基本原理為開端。

86、The nineteenth century witnessed a revolution in ship design and propulsion. ─── 19世紀(jì)經(jīng)歷了船舶設(shè)計(jì)和推進(jìn)上的一次重大變革。

87、A jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream. ─── 基于空氣動(dòng)力學(xué)的推進(jìn)噴氣和火箭。

88、In front and on either side of them were the control panels for LM's guidance , communications, environment, and propulsion systems. ─── 在他們面前和兩邊，是登月部分的響導(dǎo)通訊、環(huán)繞和推進(jìn)系統(tǒng)。

89、Into the 20th century, steam propulsion became so advanced that you could ride a giant steamer across the ocean. ─── 到了20世紀(jì)時(shí)，蒸汽推進(jìn)的技術(shù)越來(lái)越進(jìn)步，你甚至可以搭著大型蒸汽船橫渡海洋了。