并成为国内首家设计，承建水产养殖纯氧供氧工程的企业。

And become the first in design, construction of aquaculture enterprises pure oxygen works.

youdao

并成为国内首家设计，承建水产养殖纯氧供氧工程的企业。

And become the first in design, construction of aquaculture enterprises pure oxygen works.

youdao