Without derivation, organic acids were exacted from tobacco to take quantitative analysis by injecting into GLC directly.

采取不经衍生化，把从烟叶中萃取出的有机酸成分，直接进样的方式进行GL C定量分析。

youdao

Another example for derivation is when you use an extension without an abstract type.

另一个派生的示例是使用不带抽象类型的扩展。

youdao

In this paper, authors present a derivation of the Lorents transformation by invoking the principle of relativity alone, without the principle of invariance of light speed.

在大多数介绍狭义相对论的文章中，导出洛仑兹变换公式的依据都是相对性原理和光速不变原理。

youdao

Now if you look at my derivation here, there's one spot where I could have just stopped and proven my point without going through the whole thing.

如果仔细检查我的推导过程，你会发现其实,我们不用研究整个循环过程,就可以证明我们要证的公式。

麻省理工公开课 - 热力学与动力学课程节选