煤制油技术主要有煤炭直接液化和煤炭间接液化两类。

Usually, there are two technical routes: direct coal liquefaction and indirect coal liquefaction.

youdao

煤制油技术主要有煤炭直接液化和煤炭间接液化两类。

Usually, there are two technical routes: direct coal liquefaction and indirect coal liquefaction.

youdao