extensive electron diffraction测试是什么?

extensive electron diffraction测试是什么? extensive是什么意思 extensive at extensive line closed-shell electron是什么意思? extensive development是什么意思 excessive extensive的区别 extensive margin 怎么翻译 extensive 啥意思? extensive and profound是什么意思 extensive connection什么意思 extensive与expansive的区别 extensive propertym中文意思是什么 provide extensive of sports events The time has come ___________ we can make extensive use of nuclear energy.A.as B.when C.while D.since The fire was finally brought under control,but extensive damage _________.A.is caused B.was causing C.had caused D.had been caused 英语翻译In general,matters which lie entirely within the state boundaries arethe ____ concern of the state government.A) extensive B) excluding C) excessive D) exclusive 关于 主量子数n 和 副量子数l An electron is in 5d state in hydrogen笔记上写是 n=5 ,l=2到底怎么找 主量子数n 和 副量子数l 元素周期表那里怎么看的?An electron is in 5d state in hydrogen,calculate the energy of t