non-polar variation of latitude

地理纬度用英语怎么说... ... non-polar variation of latitude 非极纬度变化 geography of animal husbandry 畜牧业地理 ...

1,A ring,A 环2,A star,A... ... 5414,non-polar variation of latitude, 非极性纬度变化 5415,non-proton flare, 非质子耀斑 ...