Rapidclosing of the valve is accomplished fitting a heavy spring.
安装一根粗弹簧就可以达到迅速关闭阀门的目的。
2
Fluid Energy Controls surge Stop surge Suppressors are designed to dampen the pressure surges caused by rapidclosing and opening of flow control valves in any liquid handling system.
浪涌电压抑制器用以抑制关闭和开启控制阀时产生的压力波动。
3
In his closing chapter Mr Kissinger finally turns to the big question: does China's astonishingly rapid rise condemn it to inevitable conflict with America?