这对我国的玉米优良品种的培育和玉米生产有着非常重要的意义。

This is very important for maize breeding and production of our country.

youdao

这对我国的玉米优良品种的培育和玉米生产有着非常重要的意义。

This is very important for maize breeding and production of our country.

youdao