同轴、管内螺纹弹簧单导对夹式止回阀，专门用于防止水击作用和倒流现象。
The ALC? is an in-line, spring assisted, single guided "wafer" check valve designed to prevent "water hammer" and "reverse" flow.
应用弹性动力学分析方法，在合理假设的基础上，建立了震击作用动力学模型。
A dynamic model for jarring action is set up based on a rational assumption and by using the elastic dynamic analysis method.
由于泵站出站止回阀的作用，长输管道水击过程中会出现同步现象。
Under the effect of check valve, synchronization phenomenon is caused in the process of water hammering in long distance pipelines.
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