final-stage rocket
常见例句
- 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。
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