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.

youdao

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.

youdao

此外，本发明有效减小了底架的外形尺寸和重量，进而方便整机转场及安装。

In addition, the external size and the weight of the underframe are effectively reduced to further facilitate transportation and installation of a whole machine.

youdao