The load method of the system is that installing a throttle ahead of a proportional overflow valve, and the throttle can prevent the effect of the pressure impulsion upon sensors and meters.

本论文所述系统的加载方法是在比例溢流阀前装一个节流阀，利用节流阀来阻止溢流阀产生的压力冲击对传感器及仪表的影响。

youdao

Fortunately we were able to shut off a valve ahead of the leak and the pilot got us home safely.

幸运的是，我们关闭了泄露油箱的阀门，飞行员把飞机安全飞回。

youdao

The installation of a strainer ahead of the backflow preventer is recommended to prevent fouling of the check assembly and resultant spillage from the valve during repressurizing.

建议在防 回流阀前安装一个 过滤器，防止止回阀受到污染和阀门在再增压期间出现泄漏或溢出。

youdao

Keyzer and the hardware team at Valve certainly seem to understand the challenges ahead of them in 2013.

ENGADGET

In addition, Valve's Michael Abrash will discuss the hardware challenges that lie ahead and possible solutions for virtual and augmented reality in 'Why Virtual Reality is Hard (And Where it Might be Going).

ENGADGET: Stay seated: Valve's Team Fortress 2 ported to virtual reality