annular preventer造句

"annular preventer"是什么意思

造句与例句手机版

Adjust the hydril ( annular preventer ) pressure to 900 psi
环形防喷器压力调到900磅/英寸2 。
Have the hydril [ annular preventer ] pressure - tested to 5 , 000psi
海德里环形防喷器试压5000磅/英寸2 。
It's difficult to see annular preventer in a sentence. 用annular preventer造句挺难的

相邻词汇

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