英语语法分析

One technical difficulty is cavitation, where low pressure behind a turning blade causes air bubbles.

一个技术难题是气穴现象，一旦发生气穴现象，位于旋转螺旋桨叶后方的低压会产生气泡。

This is the basis of the phenomenon called cavitation.

这就是所谓汽蚀现象的根据。

Cavitation can make the surface trim have worn, and deep pits.

汽蚀可使阀内件的表面产生磨痕、深沟及凹坑。