因此高炉主卷扬是高炉炼铁的重要环节之一。

So the main blast furnace blast furnace iron making winch is one of the important links.

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主卷扬控制系统是保证高炉正常连续生产的关键设备之一。

Hoist the main blast furnace control system is the guarantee for the normal production of one of the key equipment.

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钻机配有一个主卷扬机、一个副卷扬机。主卷扬机用于升降钻具、下井管等。

Drilling rig equipped with a main hoist, one vice hoist, main hoist for lifting drilling, downhole tubes.

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