单词	wellhead control valve
释义	wellhead control valve 井口控制阀
随便看	pressure drop for lifting material pressure drop gas reserves pressure drop history pressure drophydraulic pressure drop in furnace pressure drop limitation pressure drop manometer pressure-drop manometer pressure drop method pressure-drop method pressure drop model pressure drop of bend pressure drop of evaporator pressure drop of separator pressure drop of steering control valve pressure drop of the bed pressure drop oscillation pressure dropping pressure dropping of anti fuel pressure droppneumatic pressure drop profiles pressure drop rate pressure drop ratio pressure drop reducing structure Pressure Drop Reduction