基本释义:

四价

网络释义

1)tetravalency,tetravaience,tetravalence,四价

2)V 4+,四价钒

3)Cerium(Ⅳ),四价铈

4)Ce4+ salt,四价铈盐

5)Uranous nitrate,四价铀

6)Tetravalent praseodymium,四价错

用法和例句

It was calculated by analog that the V 4++ accounts for 9.

通过拟合给出四价钒元素在整个钒元素中所占的比例为 9。