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Thus we put forword to apply Push pull ventilation device to dust control welding roof.
因而提出了将吹吸式通风装置用于棚板焊接烟尘控制上。
youdao
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Possess the arc push current device. It's not easy to change.
设有推力电流装置，不易发生引弧不良和焊条粘附现象。
youdao
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Possess the arc push current device. It's not easy to change.
设有推力电流装置，不易发生引弧不良和焊条粘附现象。
youdao