查询词典 shut-off valve

The e-Valve system developed by Valeo, a French automotive supplier, uses electromagnetic controls to open and shut valves instead of pushrods operated by a camshaft.

一个法国的汽车配件商 Valeo 开发出一种称作 e-阀的系统。它使用电磁控制气门的开关，而非传统的曲轴连杆。

Valves open and close speeds generally no strict requirements, but some conditions the speed of the hoist he special requirements, if any, the prompt to open or PRESSURE-REDUCING VALVE EN200X closed, to prevent an accident, and some require slow and shut down to prevent the resulting water hammer, etc.

一般对阀门的启闭速度无严格要求，但有些工况对启闭速度有特殊要求，如有的要求迅速开启或关闭，以防发生事故，有的要求缓慢关闭，以防产生水击等，这在选用阀门类型时应加以考虑。

If a valve downstream from the filter is shut too fast, the water pressure will reverse and can cause "ballooning".

如果过滤器的下游水阀门关闭太快，水压会倒转，而形成气泡。

Applied to adjust the casing pressure for ESP wells, it automatically discharges through the bleeding valve, the casing gas into oil/gas manifold, for the purpose of controlling the reasonable submergence depth of ESP intake, and preventing the shut-down of ESP due to gas lock or under-load. This not only ensures the normal pump operation but also enhances the pump efficiency and production rate.

常用于电潜泵套管压力调节，套管气通过放气阀排入输油管汇，以控制合理的电泵吸入口沉没度，防止潜油电泵发生因气锁现象的发生导致的欠载停泵，保证电泵的正常运行，提高泵效及产量。

Then the piston to the left side from the right end of the campaign, this time suction valve 5 automatically shut down.

接着活塞从右端向左端运动，此时吸气阀5自动关闭。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。