Rapid closing 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。
Fluid Energy Controls surge Stop surge Suppressors are designed to dampen the pressure surges caused by rapid closing 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。
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?
在最后一章，基辛格最终触及一个重大问题：中国震惊世界的飞速发展是否注定将于美国产生难以避免的冲突？
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