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

减小刀具速度波动，可以提高牛头刨的加工精度、表面光洁度及刀具的寿命。

When the wave of speed of a cutter is decreased, the working accuracy of the crank-shaper, the life expectance of the cutter and the smoothness of the working surface can thus be increased.

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