英语词汇“motive column”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	motive column
释义	motive column motive column [′mōd·iv ‚käl·əm] (mining engineering) The ventilating pressure in a mine in units of feet of air column; the height of a column of air whose density is the same as the air in the downcast shaft, which exerts a pressure equal to the ventilating pressure.
随便看	shuthelah shut her cake hole shut her down shut her ears to shut her eyes and think of england shut her eyes to shut her face shut her gob shut her in shut her mouth shut her out shut her pie hole shut her trap shut her up shut her yap shut him down shut him in shut him out shut him up shut his cake hole shut his ears to shut his eyes and think of england shut his eyes to shut his face shut his gob

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