脉动变化 meaning in English
impulsive variation
Examples
- As the vectors go around, the amplitude of the sum vector gets bigger, and smaller, and the intensity pulsates .
在矢量旋转时，合矢量的振幅时而变大，时而变小，因而强度作脉动变化。 - Unsteady separated flow , produced during the gate - opening period in the reverse radial gate tunnel of a high - lift shiplock , is characterized by negative pressure and high velocity as well as their intense fluctuations in space and time and could easily result in various harmful phenomena such as cavitation , gate vibration and sonic boom , which have been observed and confirmed by prototype and physical model tests
高水头船闸输水反弧阀门开启过程中，后廊道内发生急变分离流，负压、高速水流以及压力与流速的剧烈时空脉动变化容易诱发空化空蚀、门振和声震等有害现象已被原型观测和物理模型试验研究证实。