矿井提升机是矿山生产最重要的设备。

The mine hoist is one of the most important equipments.

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矿井提升机是矿山的大型固定设备之一。

Mine lifter is one of the big equipment.

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矿井提升机是矿山的大型固定设备之一。

Mine lifter is one of the big equipment.

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