... 舱外活动（即“太空行走”）extra-vehicular activity(EVA) 地面操作系统 ground operation system 地形和地表结构 topographical and surface structures ...
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The Shenzhou-VII mission entered the countdown stage after the final check on the spacecraft, the carrier rocket and the ground operation system was completed Tuesday morning.
在对飞船进行最后检查之后，神舟七号计划进入倒计时阶段。 周二早上，运载火箭和地面操作系统已完成对接。
Thee Shenzhou-VII mission entered the countdown stage after the final check on the spacecraft, the carrier rocket and the ground operation system was completed Tuesday morning.
在对飞船进行最后检查之后，神舟七号计划进入倒计时阶段。周二早上，运载火箭和地面操作系统已完成对接。 。
The purpose of the pneumatic system is to supply compressed air for a controlled temperature and pressure environment during all phases of flight and ground operation.
增压系统的作用是为飞行及地面所有阶段的温度和压力控制提供压缩空气。
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