Due to power failure suddenly, the lifting system of sand pump in alluvial gold mine is frequently blocked up.

砂金矿山所用砂泵提升装置因突然停电而堵塞提升系统。

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Due to power failure suddenly, the lifting system of sand pump in alluvial gold mine is frequently blocked up.

砂金矿山所用砂泵提升装置因突然停电而堵塞提升系统。

youdao