Research progress on external fertilization of Chinese cattle 中国黄牛体外受精的研究进展
Comparative study on internal and external nutrient cyclings or poplar tree under different fertilizations ⅱ. Effect of fertilization on concentration and storage of major nutrients in poplar leaves before and after leaf fallen 不同施肥杨树主要营养元素内外循环比较研究Ⅱ.施肥对落叶前后杨树叶片营养元素浓度及贮量的影响
A preliminary study on effect of age of fallopian tube oocytes on external fertilization in mice 小鼠输卵管卵卵龄对体外受精影响初探