tubular steel derrick detail的意思|示意

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钢管井架细节

tubular steel derrick detail的网络常见释义

钢管钻塔 English translation for "钻塔" ... 钻塔平台: drilling derrick platform detail>> 钢管钻塔: tubular derrick; tubular steel derrick detail>> 角铁钻塔: angle derrick detail>> ...