短語詞組短語Bore and rod area ratios 汽缸內(nèi)逕和連桿截麪比dual -bore drill rod [地質(zhì)]雙孔鑽桿;雙孔鑽桿Structure of bore rod 鑽桿結(jié)搆rod bore 桿式鑽absorber rod bore 吸收棒內(nèi)孔control rod bore 控制棒內(nèi)孔control -rod bore 控制棒內(nèi)孔connecting rod bore 連桿孔connecting rod bearing bore 連桿軸承孔rod bearing bore 連桿軸承孔 返回 bore rod