英文：component of petroleum,oil component 释文：对石油中不同成分在不同溶剂中溶解难易程度而作的分类,可分为油质、苯胶质、酒精一苯胶质、沥青质等。
比如，从沸点较低的组分生产石油产品，就会自动产生一定数量的高沸点产品。
For example, the manufacture of products from the lower boiling portion of petroleum automatically produces a certain amount of higher boiling components.
该公司称这种轮胎可谓极为环保，其组分的80%都是从非石油原料中提取的。
The company says its tyres are among the greenest produced, with 80% of their ingredients derived from sources other than petroleum.
流体的运移性与粘度成反比，石油吸收部分气相组分后粘度降低。
The mobility is inversely proportional to the viscosity, and the viscosity is reduced when the oil takes up gaseous components.
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