该机器人具有结构简单，外形尺寸小，重量轻等特点。

This robot has light weight, small dimension, and simple structure.

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具有外形尺寸小、重量轻、通孔和转速适中、性能可靠等特点，各项指标均能满足一般数控车床的需要。

They are with feature compact construction, light weight, moderate center hole and speed, reliable performance, and meet requirements of nc turning lathes.

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三峡电站水轮机是运行水头变幅最大的混流式水轮机之一，其外形尺寸和重量亦是当前混流式水轮机之最。

The turbine for the Three Gorges Project is one of the mixed-flow turbines with great changes of operation water head.

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