I bought it for the micro adjustment feature, the extra power that it offers over my 690 and the smooth start and stop.

我买它的微观调整企划它提供了额外的权力，我和690的顺利启动和停止。

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The movement control system of the equipment requires a fine uniform velocity, a smooth start, motion and stop, and precise location.

该设备对运动控制部分的匀速性、平稳性和多次扫描的位置重复性的要求均比较高。

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