working in confined spaces
在密闭仓室内作业 Working in Confined Spaces 有那些危险？ What are these Hazards?
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working in confined spaces
在密闭空间工作
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The government also brought in Chile's navy, whose submariners have experience working at great depths in confined spaces.
ECONOMIST: Chile's mine rescue