静子叶片的英文：
stator vane

There is a vane on top of the building.
在大楼的顶端有一只信风旗。

A weather-vane surmounts the spire/The spire is surmounted by a weather-vane.
风向标装置在尖塔上(尖塔上装有风向标)

This device operates similarly to the vane pump.
这种装置的运转情况与叶轮泵很相似。

Do the vanes in the figure rotate clockwise or counterclockwise?
图中叶片的旋转方向是顺时针的，还是反时针的？

erosive action is achieved at each contraction where a pair of opposing vanes are installed
在每个收缩区段中相对地设置一对叶片，都起到了冲洗作用。