“methane indicator”的概念、定义、翻译、参考文献-科学参考

单词	methane indicator
释义	methane indicator [`meth´ān ´in·dǝ´kād·ǝr] ^{MINING ENGINEERING} A portable analytical instrument that can determine the methane content in the mine air at the place where the sample is taken; air is brought into the instrument through an aspirator bulb and passed through a cartridge filter to remove moisture.
随便看	break-in operation break key breakoff phenomenon breakout breakout block breakout box breakoutput breakout schedule breakout tongs breakover breakover voltage break period breakpoint breakpoint switch breakpoint symbol break rolls breaks in overcast breakthrough breakthrough sweep efficiency break thrust breakup breakwater breast breastbeam breast boards

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