成份指数的英文怎么说

成份指数的英文：
component index

time change component
定时更换的部件

Create component as new on the descendent.
创建新的派生组件.

A computer consists of thousands of components.
电脑由成千上万个部件组成。

These are the component parts of that machine.
这些是那台机器的零组件。

Is a single component analysis sufficient or is it desirable to do a multi-component analysis?
单一组分的分析已经足够还是需要进行多组分分析?

The simplest form of a composite index is an unweighted aggregates index
综合指数最简单的形式是不加权数的总计指数。

Social Sciences Citation Index
社会科学引文索引

The radius represents the advancement index.
辐枝代表进化指数。

Weeds are an index to the character of the soil.
杂草是反映土壤特征的一个指标。

Painters and sculptors are indexed separately.
画家和雕刻家被分开，分别做了索引。