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headframe; headgear; headtree; poppet-head | |||
boring tower; drill tower; DRK; Dk; heapstead; mast | |||
gallows frame; mine head frame; shaft-head frame | |||
drive block | |||
derrick | |||
drilling tower; gallows; headframe (浅井、竖井); head gear; headwords; heap stead; shaft headframe; winding tower; oil derrick | |||
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derrick | |||
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mast |
井 架 : 454 phrases in 17 subjects |