grasslandn.牧场;草地
grassland condition草地状况
grassland ecosystem草地生态系统
grassland territory草原地
grassland gradation草地退化
Grassland situation草地现状
Grassland degeneracy草地退化
grassland evaluation草原评价
grassland management草原管理;草原经营
grassland ecological草原地区
grassland sod seeder草皮地播种机