英语词汇trackless mine是什么意思，trackless mine的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	trackless mine
释义	trackless mine　无轨矿井
随便看	prepurging prepurification preputial preputial preputial calculus preputial concretion preputial glands preputial space preputiotomy prepyloric prepyloric sphincter prepyramidal prepyramidal fissure prepyramidal sulci prepyramidal tract prepyrogen preqnancy gingivitis prequalification prequalify prequel prequel prequel prequel prequench prequenching

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