The second step is to select the closure may be required to meet the speed of the check valve type.

第二步是选择可能满足所需要的关闭速度的止回阀类型。

youdao

Step on flush water valve and pump at least 15 strokes with pump handle.

脚踩在进水阀门踏板上，同时将手摇泵摇压最少15下。

youdao

The concrete pump pumping out of step the reason of is analyzed, and through fitting gas valve, the question is settled.

分析了混凝土输送泵泵送不同步产生原因，通过安装排气阀解决该问题。

youdao

Becoming vulnerable, and understanding that we need to talk about what happened, is the first step in opening the emotional pressure valve that is inside all of us.

CNN: There is no shame in not being Superman

First of all, the relief valve is the final and most assured final step -- that would be to essentially drill down the 19, 000 feet to where the formation is and to block off the well that is now open.

WHITEHOUSE: Press Briefing on Oil Spill in Gulf of Mexico

The next step is getting prototypes into gamers hands -- she says Valve already has a production line for short runs, making a beta possible -- and iterating on design before launch.

ENGADGET: Valve's first hardware beta starting by next year, wearable computing still far off