Mud drilling machinery and equipment is an important part.

泥浆泵是钻探机械设备的重要组成部分。

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Two European companies — Germany's Wirth and Italy's Seli — supplied tunnel-drilling machinery and ventilation equipment.

两家欧洲公司——德国Wirth和意大利seli为这项工程提供了隧道钻井装备以及通风设备。

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Two European companies -- Germany's Wirth and Italy's Seli -- supplied tunnel-drilling machinery and ventilation equipment.

两家欧洲公司--德国Wirth和意大利Seli为这项工程提供了隧道钻井装备以及通风设备。

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Long lead times persist for oil drilling rigs, mining equipment and some other specialized machinery, but generally companies face no supply limitations when considering expansion.

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That drilling continues to rapidly increase in efficiency, both its machinery and manpower, is also a permanent part of the landscape.

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Drilling further into the activity breakdown, the strongest upside contribution to IP again came from auto production, machinery, and oil and gas refining, which grew monthly by 4.7%, 5.2% and 5.7%, respectively.

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