主族是主要族群的简称,族群在人口上有主次之异。族是某种角度具有重要共同性的群,群未必有某种角度的共同性。主族也是化学周期表用语。
... 过渡元素;副族;subgroup;d区元素;d-block elements;transitio…… 主族;main group 主族;main group ...
基于174个网页-相关网页
主族元素 main group
第七主族 VIIA
社会主义民族关系 socialist ethnic relation ; socialist ethnic relations
种族主义 racism; racialism ; racist ; racism ; racialism
家族主义 familism; clan system; clan authority ; familism
民族主义 nationalism
马克思主义和民族问题 Marxism and the National Question ; Marxism and the National Question; Марксизм и национальный вопрос
民族民主革命 national democratic revolution
马克思主义民族化 nationalization of Marxism
基础无机化学:主族元素及其化合物。
General Inorganic Chemistry: main group elements and their compounds.
每一周期以惰性气体的主族元素结束。
Each period ends with a member of the family of elements called the noble gases.
我想,你们可能认为第一主族,没有氢,而氢应该是最小的。
I mean, you would expect that the group one, absent hydrogen, would be the ones that would have the least.
I mean, you would expect that the group one, absent hydrogen, would be the ones that would have the least.
我想,你们可能认为第一主族,没有氢,而氢应该是最小的。
Now, remember, the formation of the ionic bonds was from group one and group two, and over here with group six and seven.
现在请记住,离子键的形成,从第一族和第二族元素,与六七主族的元素相互构成的。
All of these from the group one and two through the group five and six elements, but what about elements, what about molecules like hydrogen, or nitrogen, or maybe oxygen?
所有的这些都是来自于第一主族和第二组主族,到第五主族和第六组主族的悬殊,那么元素呢,比如氢气,氮气或氧气那样的分子呢?
应用推荐