For most of these valves, a restriction is necessary to produce the required pressure control.

对于大多数的这些阀门、限制是必要的生产要求的压力控制。

youdao

To the required pressure is not open the reason for this result is the constant pressure are not allowed.

到规定压力时不开启造成这种情况的原因是定压不准。

youdao

The compressed air should be delivered at the required pressure to avoid the destruction of the internal components.

压缩空气要降到要求的压力，以免损坏焊机内的元件。

youdao

My one complaint with the touchpad is the amount of pressure required to register a left or right click.

FORBES: First Impressions: Dell XPS 10 Windows RT Tablet with Keyboard Dock

Workers in positions where few skills are required also face pressure from the nearly 15m Americans still stuck without a job.

ECONOMIST: American firms are hiring again, but hold the cheers

We would've liked a little more pressure required to stop the track when touching the top of the wheel (we found ourselves accidentally stopping tracks we were merely trying to beatmatch on a couple occasions), but otherwise, it's great... and we eventually learned that we could avoid the drama by keeping our hands to the outer edge as Native Instruments intended.

ENGADGET: Native Instruments Traktor Kontrol S4 review Alt