Tapping machine is one of the main equipments of blast furnace.
开铁口机是高炉炉前的主要设备之一。
This is a patented single column machine for drilling or for tapping.
这是一台获得专利的单柱机，可以用来钻孔或攻丝。
There is a practical value for tapping the production potential of this machine.
这对挖掘该机潜能具有实用价值。
There is a practical value for tapping the production potential of this machine.
这对挖掘该机潜能具有实用价值。
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