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单词 gas clean-up
释义 gas clean-up
基本例句
气体清除,提高真空度
Dry drilling relies on a reciprocating metal head that pulverizes the rock in its path, which is then cleared from the borehole by high-pressure gas.乾钻法是利用来回动作的金属钻头击碎前方的岩石,再由钻孔所喷出的高压气体清除岩石。
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