初二年級英語送“神五”升空的長二F型火箭

1、本文格式為Word版，下載可任意編輯 初二年級英語送“神五”升空的長二F型火箭 2022年10月15日上午9時整，托舉著“神舟”五號載人飛船的“長征”二號F型運載火箭在轟鳴聲中直沖藍天，把一條巨龍般的橘紅色烈焰留在秋日的戈壁長空。 At 9:00 a.m. on October 15, 2022, the long march-2f carrier rocket carrying the Shenzhou-5 manned spacecraft rushed into the blue sky in the roar, leaving a dragon like orange flame in

2、 the autumn Gobi sky. 乳白色的“長征”二號F型火箭起飛重量479。8噸。它是在“長征”二號E型火箭根基上研制的以放射飛船為主要任務(wù)的運載火箭，1992年開頭研制，1999年首發(fā)告成。此前，這種火箭已經(jīng)告成地將4艘無人飛船送入太空。 The Milky Long March II f rocket has a takeoff weight of 479. 8 tons. It is a launch vehicle developed on the basis of the Long March II E-type rocket, which takes launching

3、 spacecraft as the main task. It was developed in 1992 and launched successfully in 1999. Previously, the rocket has successfully launched four unmanned spacecraft into space. 作為中國火箭家族中最重、最長的成員，“長征”二號F型火箭采用了55項新技術(shù)，使它同時成為中國航天史上技術(shù)最繁雜、穩(wěn)當性安好性指標最高的火箭。 As the heaviest and longest member of Chinas rocket f

4、amily, the long march 2F rocket has adopted 55 new technologies, making it the most complex rocket with the highest reliability and safety index in Chinas aerospace history. 這枚火箭首次采用了垂直總裝、垂直測試和船、箭、塔組合體垂直運輸?shù)摹叭埂睖y試放射模式，變更了過去水平總裝、水平運輸?shù)哪Ｊ剑?首次采用遠距離測試放射操縱技術(shù)，其中先進的光電技術(shù)、自動操縱技術(shù)和弱信號的遠距離傳輸技術(shù)均達成國際先進水平。 For the f

5、irst time, the rocket adopts the three vertical test launch mode of vertical assembly, vertical test and vertical transportation of ship, arrow and tower assembly, which changes the previous horizontal assembly and horizontal transportation mode; for the first time, it adopts the remote test launch

6、control technology, in which advanced photoelectric technology, automatic control technology and weak signal remote transmission technology all reach the international advanced level. 為了進一步增大飛行中的安好性，它配置有特意的故障檢測處理系統(tǒng)和逃逸系統(tǒng)?；鸺诖l(fā)段和上升段發(fā)生故障時，能夠自檢測、自診斷，發(fā)出故障信息給逃逸系統(tǒng)，逃逸系統(tǒng)隨即帶飛船離開箭體，從而保障航天員的安好。 In order to furt

7、her increase the safety in flight, it is equipped with special fault detection and processing system and escape system. When the rocket breaks down in the waiting and rising stages, it can self detect and self diagnose, send out the fault information to the escape system, and then the escape system

8、will take the spacecraft away from the rocket body, so as to ensure the safety of astronauts. “長征”二號F型火箭還首()次研制了全冗余的操縱系統(tǒng)，實現(xiàn)雙套制導(dǎo)與穩(wěn)定操縱技術(shù)，其中雙CPU計算機、三余度伺服機構(gòu)和雙回路穩(wěn)定平臺技術(shù)均達成國際先進水平。從放射“神舟”三號開頭全面籠罩系統(tǒng)的冗余操縱大大提高了運載火箭的穩(wěn)當性，為實現(xiàn)載人奠定了根基。 The long march 2F rocket has also developed a fully redundant control system for

9、 the first time to realize dual guidance and stability control technology, among which dual CPU computer, three redundancy servo mechanism and dual loop stability platform technology have reached the international advanced level. The redundancy control of the full coverage system since the launch of

10、 Shenzhou-3 has greatly improved the reliability of the launch vehicle and laid the foundation for the realization of manned launch. 為保證火箭高穩(wěn)當性和高安好性，火箭電器系統(tǒng)就有近4萬個元器件。全體元器件都經(jīng)過了篩選和40多個回合的增長試驗，不僅要在模擬飛行環(huán)境下達成設(shè)計指標，而且在此根基上要有裕度。譬如，從火箭放射到飛船入軌只有短短的600秒，但火箭的穩(wěn)當性增長試驗卻達成了546小時。這樣，就使“長征”二號F型火箭的穩(wěn)當性指標達成0。97，這就是說放射100發(fā)

11、火箭只能有3次展現(xiàn)問題。同時，火箭的安好性指標達成0。997，意味著1000次故障所采取的救助措施只有3次是不告成的。 In order to ensure the high reliability and safety of the rocket, the rocket electrical system has nearly 40 thousand components. All components have been screened and more than 40 rounds of growth tests have been carried out. It is not onl

12、y necessary to achieve the design target in the simulated flight environment, but also to have margin on this basis. For example, its only 600 seconds from the launch of the rocket to the launch of the spacecraft, but the reliability growth test of the rocket has reached 546 hours. In this way, the reliability index of the long march 2F rocket reaches 0. 97, which means that there are only three problems in launching 100 rockets. At the same time, the safety index of the rocket reaches 0. 997, which means that only three rescue me