矿柱

矿柱
kuàngzhù
(1) [mine prop; prop]∶矿井中支承井顶的木柱
(2) [pillar; rib]∶在矿井中留下作为支架的矿石的或煤的长柱

Advanced Chinese dictionary. 2013.

Игры ⚽ Поможем сделать НИР

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