为了研究利木赞牛改良民和县浅山地区当地黄牛的效果。

To study the improvement effect of Limousin cattle and Local cattle in Minhe County Middle Hills region.

youdao

为了研究利木赞牛改良民和县浅山地区当地黄牛的效果。

To study the improvement effect of Limousin cattle and Local cattle in Minhe County Middle Hills region.

youdao