The more difficult second level requires a flight of 180 seconds followed by a landing on simulated lunar terrain, complete with rocks and craters.

更困难的第二个级别，要求飞行180秒，接着在遍布岩石和陨石坑的模拟月球地形上降落。

youdao

Under simulated condition in laboratory the relationship between landing impact force and landing impact time was studied.

在实验室模拟条件下，研究着陆冲击力与着陆冲击时间的关系。

youdao

A landing gear drop test method is presented in this paper, in which the lift is simulated by an air actuator and accumulator system with constant pressure.

结合某型号飞机试验任务，阐述有关空气作动筒仿升的起落架落震试验方法。

youdao

The real fun begins at 90, 000 rubles, when you don a spacesuit and experience a simulated launch, flight and landing in a Soyuz rocket, complete with Russian- language capsule controls.

BBC: The dated future of Russia��s Star City