短語詞組短語counter sinking 锪孔;鉆錐坑;滾絲;倒角沉孔schaft sinking 鑿井pit sinking 鑿井sinking agent 沈降劑;沉淀劑sinking hoist 鑿井提升機sinking operation 井筒掘進pile sinking 打樁;沉樁Cementation Sinking [礦業(yè)]灌漿法鑿井sinking tree 沉樹shaft sinking 鑿井sinking ship 正在下沉的船die sinking 刻模；開模；制陰模；加工模腔 返回 sinking