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许用器材
在瓦斯煤矿中,对于炸药、放炮器、电机、电器、照明器具、各种瓦斯测定器和其他用于爆破的物品,凡未经检定合格者不得安装和使用。经检定合格的称作许用器材,也称安全器材。一般煤矿和金属矿山,在特殊情况下,也应使用许用器材
expl.
permissible equipments
许用 器材
:
2 phrases
in 1 subject
Explosives and Explosive Ordnance Disposal
2
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