降落伞减速系统是空中和空间飞行器回收着陆系统的主要方式。

Parachute deceleration systems are a primary means of recovery and landing of air and space vehicles.

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降落伞减速系统是空中和空间飞行器回收着陆系统的主要方式。

Parachute deceleration systems are a primary means of recovery and landing of air and space vehicles.

youdao