环形防喷器的英文

annular preventer

• 环形:    annular; ringlike; ...
• 防:    provide against; d ...
• 喷:    time on the market ...
• 器:    implement; utensil ...

例句与用法

1. Adjust the hydril ( annular preventer ) pressure to 900 psi
   环形防喷器压力调到900磅/英寸2 。
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 。