“switchman”的概念、定义、翻译、参考文献-科学参考

单词	switchman
释义	switchman [`swich·mǝn] ^{MINING ENGINEERING} A laborer who throws switches of mine tracks in a coal mine.
随便看	Brachythoraci Brachyura bracing brackebuschite bracket bracket fungus bracketing method bracketing salvo Brackett series brackish Braconidae bract bracteolate bracteole bractlet brad bradding Bradfordian Bradley aberration bradleyite bradyauxesis bradycardia bradydiastole bradyesthesia bradykinesia

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