Mud pulse MWD can not be used when too much gas or air in drilling fluid, and therefore electro-magnetic telemetry has speedily developed as an alternative.是什么意思_Mud pulse MWD can not be used when too much gas or air in drilling fluid, and therefore electro-magnetic telemetry has speedily developed as an alternative.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句