词语perpendicular shaft
解释竖井
词性名词
perpendicular shaft〔名词〕垂直道井详细»
竖井vertical shaft详细»
竖井shaft;vertical shaft详细»
竖井silo;silos详细»
竖井〔名词〕riser,box-coupling详细»
竖井coal pit;silo;silos详细»
竖井pitshaft详细»
竖井shaft;vertical shaft;well详细»
竖井open well;vertical shaft详细»
竖井〔名词〕shaft,well详细»