A drilling technique whereby gases (typically compressed air or nitrogen) are used to cool the drill bit and lift cuttings out of the wellbore, instead of the more conventional use of liquids.
空气钻井是一种钻井工艺，是指利用气体去冷却钻头和把岩屑举升出油井环空，而不是利用更常使用的流体。
The diesel start is the essential for whole drilling rig and while the supply of compressed air to diesel for start is the necessary condition.
石油钻机柴油机启动是整台钻机的关键之一，而提供压缩空气又是启动柴油机的必要条件。
In China, the screw drilling and the normal pressure compressed air drilling were conducted for trial and the results were not so good.
国内进行了螺旋钻进和常风压空气钻进的尝试，但效果一般。
Activity: Running rails and curves for suspended monorails, material transport system, compressed-air cradle drilling machines.
企业行为：悬挂轨道的直轨和弯轨，物料运输系统，气动钻机。
Activity: Running rails and curves for suspended monorails, material transport system, compressed-air cradle drilling machines.
企业行为：悬挂轨道的直轨和弯轨，物料运输系统，气动钻机。
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