... EM Electron Microscope 电子显微镜 EM Engine Modification 发动机改型 EM Engine Modification 发动机修改 ...
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对某型涡轮喷气发动机进行了改进、改型设计。
The improved and modification designs were conducted for a turbojet engine.
幻影4000战斗机是幻影2000的改型，装有两台发动机，机体尺寸比2000大得多。 达索公司依靠自己的人力物力开发了幻影4000，期望能够获得外国定单，但迄今定单数仍为0。
The variation of Mirage 2000: Mirage 4000, Mirage 4000 is equiped with 2 engines and the size of all parts are much larger than Mirage 2000.
采用实验方法对某型弹用涡扇发动机涡轮低压导向器原型和改型进行了详细的低速风洞实验。
Detailed flow field measurements were conducted in a low speed wind tunnel for both original and modified LGV's which are used in turbofan engines.
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