介绍了碳弧气刨的工作原理和组成结构。

This paper briefly introduces the work principle and structure of carbon arc air gouging.

youdao

像可切割或刮刨的锋利石片这些原始工具，可能在早在一百万年前就已存在。

Crude tools, such as sharp stones for cutting or scraping , may have existed as long as a million years ago.

youdao

刨的过程中要经常根据刚才画的参考线检查刨削的进度，并用组合直角尺检查是否方正。

Check your progress relative to your reference line frequently. And check for square frequently with a combination square.

youdao

And I don't know, I used to love to quote from it but then I began to realize I'm only quoting that because it's about a guy's eye being gouged out.

我以前讲课很喜欢从中引用,后来我意识到我引用它只是因为,它写的是一个人的眼珠被刨出来而已

耶鲁公开课 - 美国内战与重建课程节选