词语钻柱
解释drill stem
drill stem〔名词〕顿锻模钻杆,钻柱装备详细»
drill stem〔名词〕钻柱,顿钻,钻杆详细»
drill stem〔名词〕钻柱详细»
drill stem钻杆详细»
钻柱drill stem drilling shaft详细»
钻柱drilling string详细»
钻柱drill string详细»
钻柱drill stem;drillstem详细»