annular rubber core的意思|示意
美 / ˈænjulə ˈrʌbə kɔ: /
英 / ˈænjəlɚ ˈrʌbɚ kɔr /
环形胶芯
annular rubber core相关例句
Close the annular blowout preventer as the well pressure is relatively low and force oil pipes and couplings to pass through rubber core of the annular blowout preventer.
井压较低时，关闭环型防喷器，使油管和接箍强行通过环型防喷器胶芯。