AIDS是获得性免疫缺损综合征的缩写。AIDS stands for Acquired Immune Deficiency Syndrome.随着人们的走动,楼梯转角上的油漆慢慢地有了缺损和擦伤.Paintwork on the corner of a stairway tends to get nicked and scratched as people pass by.他患有先天性听力缺损。He was born with a he...
If enough edges have been drawn to make the figure connected the graph is called bipartite.如果有足够的线使图连通,这图称为双图.A complete bipartite graph is a simple bipartite graph with bipartition.完全偶图是具有二分类的简单偶图.The path layer matrix ...
土壤中的养分除氮外, 最初的来源都是母岩.The nutrient in soil divides nitrogen outside, prime source is Mu Yan.另外,还简略介绍了生物除氮磷的基础理论.It also summarizes basic principles on biological nitrogen and phosphorous asas some new significant views....