draft cone tube中文什么意思

例句与用法

1. During past year , 28 times of measurements for two units of b plant of zhelin hydropower station were made , the states of pressure pulsation in the draft cone tube , head cover and spiral case of units were acquired under different water heads , and the influences of that on safety and stability of units operations were also acquired
   摘要在长达一年多的时间里，对柘林水电厂b厂两台机组进行了28台次试验，全面掌握了机组各水头下尾水锥管、顶盖和涡壳中的压力脉动情况，以及对机组安全稳定运行的影响。