那时，(人们)发现一种从石油中提炼煤油的方法。

At that time, a method was found to make kerosene fuel from petroleum.

youdao

研究简化并提炼切片的体数据的方法。

Studied and simplify and refine the method of the body data cut into slices.

youdao

一种将内容提炼出大体分类的方法。

A method of clustering content into rough categories.

youdao

一种将内容提炼出大体分类的方法。

A method of clustering content into rough categories.

youdao