Varying the amount of pressure accurately positions the stem assembly to open, close or modulate the valve as required.

压力的变化将精确定位阀杆总成，使得阀门实现所要求的启、闭或调节的操作。

youdao

After the pressure screen is much better than the screen assembly quality, so a lot of stores after the pressure screen as original screen replacement.

后压屏比组装屏质量好很多，所以很多店家以后压屏充当原装屏幕更换。

youdao

Control supply line water pressure. install a soft seated spring loaded check valve upstream of the assembly.

控制供应管道的水压。在总成的上游安装一个软阀座，弹簧负载止回阀。

youdao

Then he wants to see a delegation to the Welsh Assembly to put pressure on them to appoint an independent commission to report back within twelve months.

BBC: Church enters language 'crisis' row

"We are asking members of the National Assembly to put pressure in the planning authorities to retain David Morgan as a department store, " said Plaid Cymru AM Owen John Thomas.

BBC: David Morgan closure talks

There are indications that some well known politicians could be under pressure to hold on to their Assembly seats.

BBC: Former Assembly Speaker criticises poll count system