re-entry space vehicle 空天飞行器
confined-space entry and rescue 封闭空间的进入和援救
Confined Space Entry 受限空间进入
Confined Space Entry Awareness 密闭空间安全意识
Enclosed space entry and rescue 封闭处所的进入和救助
space shuttle entry 航天飞机进入
space entry and rescue 封闭空间的进入和援救
Standby for confined space entry 监护受限空间入口
THE CONFINED SPACE ENTRY CHECKLIST 密闭空间进入检查单
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