井下防爆开关

Downhole explosion-proof switch

以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译

1
论述了用于井下巷道工作面等处照明开关的防爆性。
This puper expounds explosion-proof property of lighting switches used in underground tunnel working area etc.
2
GX-1矿用隔爆型拉引信号开关适用于具有煤尘和爆炸性气体的煤矿井下，作为低压开关防爆电铃或其它小型声响设备。
GX-1Exploding isolation type drawing signal switch used for mining is applicable to coal mine where has explosive gas and coal dust.

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