Rocket engine test stand exerts force on a load cell.
火箭发动机试验的立场，施加武力对负载细胞。
It is very important to measure liquid density in cryogenic liquid rocket engine test.
在低温液体火箭发动机的试验中，对液体密度的测量是很重要的。
In the latest test, SpaceShipTwo did not fire its rocket engine to climb to space.
在最近一次测试中，太空飞船二号由于火箭引擎点火失败而没有升入太空。
The space flight test and application situation of electric rocket engine were introduced.
介绍了电火箭的航天飞行试验和应用情况。
The space flight test and application situation of electric rocket engine were introduced.
介绍了电火箭的航天飞行试验和应用情况。
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