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词汇
sand filled electrical apparatus
释义
sand filled electrical apparatus
充砂型电气设备；外壳内充填砂粒材料；使之在规定的条件下壳内产生的电弧、传播的火焰、外壳壁或砂粒材料表面的过热均不能点燃周围爆炸性混合物的防爆电气设备。代表符号“q”。
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更新时间：2025/7/31 0:21:51