... sprayed boring tool 棱锥形钻头 sprayed drill 棱锥形钻头 sprayer 喷雾器 ...
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The problem in those days was somewhat resolved with an addition of a nozzle to the drill which sprayed a mist of water, turning dust raised by drilling into mud, but this inhibited mining work.
在那些日子里的有些问题是解决与喷嘴除了喷洒雾状水，把钻孔成泥提出的尘埃钻，但这种抑制挖掘工作。
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