饲用价值类型结构以中、低等质量的种类最多占52%，而优、良牧草种类只占23%。

In the forage value type structure, the species of middling and lowness quality take the most even 52%, but those of high and fine quality only take 23%.

youdao

饲用价值类型结构以中、低等质量的种类最多占52%，而优、良牧草种类只占23%。

In the forage value type structure, the species of middling and lowness quality take the most even 52%, but those of high and fine quality only take 23%.

youdao