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来源:雅诚德英语网
This full-size training version of the Soyuz capsule is used to practice launches and descents.
联盟号原尺寸复制的训练舱用来练习发射和降落。
This full-size training version of the Soyuz capsule is used to practice launches and descents.
联盟号原尺寸复制的训练舱用来练习发射和降落。