To reduce the air resistance, all of the fuel boxes will be discarded after the fuel is used.The escape tower and cowling piece are also discarded after they finish their tasks.

 
  • 因此航天员在穿好航天服以后,必须在气闸舱内充分吸氧,协助工作的航天员回到内舱(即轨道舱),关闭内舱门,然后气闸舱开始泄压到真空,与飞船外的真空状态保持一致,此时航天员可以出舱活动。
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