The air screw drill tool was power equipment which was designed for air drilling.
空气螺杆钻具是专为空气钻井而设计的动力装置。
You need plenty of air so that you can take your time and experience what this drill has to offer.
前尽可能你需要充足的空气，这样你就可以把你的时间和经历这个钻子所提供的。
It's a short drill, because you'll run out of air, and need to stand up to breathe:.
这是一个短暂的训练，因为你会耗尽空气，需要站起来呼吸：。
What is the drill pipe string weight in air?
钻杆在空气中的重量是多少？
I am in the midst of cheers, air to drill into the water.
我在一片喝彩声中，神气地钻入水里。
Drill pipes get rusty in air almost as fast as they do in water.
空气中生锈的速度和在水中几乎一样快。
Drill pipes are often corroded by the oxygen in the air.
钻杆在氛围中时时被腐蚀。
We were told to stay in the basement when the air-raid drill siren was on.
人家告诉我们防空演习警报响的时候，要待在地下室。
We were told to stay in the basement when the air-raid drill siren was on.
人家告诉我们防空演习警报响的时候，要待在地下室。
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