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自动电压控制型 酸性矿灯充电架通用技术条件
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矿用本质安全型便携式微型计算机.通用技术条件
General technical condition of intrinsically safe portable microcomputer for mining
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煤矿采掘工作面用隔爆型潜污水电泵 技术条件
价格：￥0.00
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煤矿井下用电器设备通用技术条件
General technical condition for electrical apparatus used underground mine
价格：￥0.00
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煤矿用胶带跑偏传感器
Belt disalignment transducer for coal mining
价格：￥0.00
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煤矿用设备开停传感器
Equipment ON/OFF transducer for coal mining
价格：￥0.00
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