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单词
miner's self-rescuer
释义
miner's self-rescuer
miner's self-rescuer
[
′mīn·ərz ¦self ′res·kyü·ər
]
(mining engineering)
A pocket gas mask effective against carbon monoxide; air passes through a cannister containing fused calcium chloride before entering the mouth.
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更新时间:2024/12/22 23:02:14