The try-out result shows that the newly developed cooling water valve can meet the finishing mill"s temperature control demands with expected effects in its performance and maintenance."

试用结果证明新研制的冷却水阀满足了精轧机轧制温度控制的要求，在性能和维护方面达到了预期的效果。

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When cold WFI is needed, the cooling mode (fig. 5) is turned on by an air switch, which closes the recirculation valve and opens the cooling water valve. Within seconds cold WFI is available.

当需要冷却注射水时，系统通过一个空气开关打开冷却模式（图5 ），同时关闭了循环水阀门打开了冷却水阀门，只需几秒钟，就可以得到冷却注射水了。

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This article mainly discusses and analyses in quality how to avoid cavitations occurred in control valve, which is in air-conditioning water system including both chilling and cooling.

本文针对空调水系统中的冷冻水系统和冷却水系统，定性的介绍了避免控制阀中气蚀现象的方法。

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That thinking changed on March 28, 1979, when a small valve stuck open, cooling water escaped and the reactor core of TMI's Unit 2 began to melt.

CNN: Three Mile Island, 20 years later