Its development success makes the manufacturing precision of runner blades higher, leads to increase the efficiency of hydro-turbine, and produce the big economical and social benefit.

它的研制成功，极大地提高了叶片的制造精度，进而提高了水轮机的效率，产生了巨大的经济和社会效益。

youdao

Its development success makes the manufacturing precision of runner blades higher, leads to increase the efficiency of hydro-turbine, and produce the big economical and social benefit.

它的研制成功，极大地提高了叶片的制造精度，进而提高了水轮机的效率，产生了巨大的经济和社会效益。

youdao