为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

The mutations in ontogenes have been shown to drastically increase the nondisjunction of X chromosomes in the <i><span s......

The article presents the geobotanical and some bioecological features of species of the genus Inula L., family Asteracea......

后生动物的 Quadrapyrgites 在于，从对远侧的目的近似一个口头的区域，从早寒武纪的 Fortunian 的一个锥，一个领子，和一个顶在 Xixiang ......

The conditional mutations in D. melanogaster are produced by gamma-irradiation, maintained in laboratory cultures, and i......