optimeter

The optimeter is widely used to precisely measure external size ofworkpiece by comparison with a gauge block or standard part.

本器是一种采用量块或标准零件与试件相比较方式测量物体外器。

The optimeter is widely used to precisely measure external size of workpiece by comparison with a gauge block or standard part.

本器是一般是用标准器（如量块）以比较法测量工件。