英语语法分析

I have never seen a coati before and luckily saw a family of them in the museum.

我从没见过长鼻浣熊，很幸运的在博物馆看到一家子。

Today the term is most often restricted to the rough plaster coati ng of exterior walls.

如今此词多用来指外墙的粗糙硬膏表面。

But the study on the rolling contact fatigue failure mechanism of super hard material coati-ngs is in grope.

但是目前对于超硬涂层材料滚动接触疲劳失效机理的研究还处于探索之中。