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单词
self-rescuer
释义
self-rescuer
\(ˈ) ̷ ̷| ̷ ̷(ˌ) ̷ ̷ ̷ ̷\
noun
:
a pocket-size respirator for emergency use that protects the wearer for a period of about one-half hour against atmospheres containing carbon monoxide gas (as in a contaminated mine)
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更新时间:2025/4/14 8:52:51