Well, there are many measures to do this, perhaps the most popular one is theDunn's Index. Dunn's index is the ratio between the minimum inter-cluster distances to the maximum intra-cluster diameter. The diameter of a cluster is the distance between its two furthermost points. In order t...
What does pragmatics study? how does it differ from semantics?配位体与中心金属离子的π成键作用将影响分裂能和配合物的稳定性。假定配位体的π轨道是空轨道，且轨道能量高于中心金属离子的轨道。请画出在八面体场中，这种π成键作用的分子轨道能级图，分析其对配合物的△o影响。
GILGlobal Interpreter Lock(to protect Python objects from being modified from multiple threads at once) GILGrowth, Innovation and Leadership(Frost & Sullivan; Mountain View, CA) GILGerenciador de Informações Locais(Brasil) GILGesellschaft für Informatik in der Land-, Forst- und Ernaehrungswirt...