草业：培育改良天然草场，在人工草地引种高产优质牧。

Grass industry: improvement of natural grassland and planting of grasses high in yield and quality on artificial grassland.

youdao

草业：培育改良天然草场，在人工草地引种高产优质牧。

Grass industry: improvement of natural grassland and planting of grasses high in yield and quality on artificial grassland.

youdao