活动指标的英文：
movable index

movable是什么意思：
n. 家具,动产
a. 可动的,动产的,不定的

movable vice jaw
活动钳口

This limitation was overcome with the invention of movable type.
随着活字的发明，这一障碍得取了克服。

A medieval light helmet with a neck guard and movable visor.
头盔中世纪有护颈和活动护面的轻便头盔

Movable set of steps (for entering and leaving an aircraft)
(上下飞机用的)移动式舷梯.

There is only a movable parts of hemisphere type, the action have no breakdowv, depevdable fuvction.
●只有一个半球式的球桶活动部件，动作无故障、靠性高。

index是什么意思：
n. 索引；指数；指标；指示
v. 做索引，编入索引中；按生活指数调整

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。