downhole equipment meaning in English

钻孔配件

Petroleum and natural gas industries - downhole equipment - packers and bridge plugs
石油和天然气工业.下井设备.封隔器和桥塞
Petroleum and natural gas industries - downhole equipment - packers and bridge plugs
石油和天然气工业.下孔设备.装填器和沙桥卡钻
Petroleum and natural gas industries - downhole equipment - subsurface safety valve equipment
石油和天然气工业.下降孔设备.地下安全阀设备
Petroleum and natural gas industries - downhole equipment - lock mandrels and landing nipples
石油和天然气工业.下井设备.锁芯轴和落地接头
Petroleum and natural gas industries - downhole equipment - subsurface safety valve equipment
石油和天然气工业.下降孔设备.地下安全阀设备

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