英语语法分析

Asphaltene content increased, the deterioration of oil quality.

沥青质含量增高时，原油质量变坏。

Others: crude oil asphaltene content of less than 1% in general.

其他：原油中沥青质的含量较少，一般小于1%。

To under - stand better the adsorption progress of petroleum asphaltene must see the whole adsorption behavior of asphaltene.

对沥青质吸附行为有个全面的了解，才能更好地认识石油沥青质吸附过程。