actinium-X

常见例句

actinium X
[医] 锕X
We use x as the symbol for an unknown quantity.
我们用x表示一个未知数。
Ms X has been named for the directorship/named as the new director.
某女士已被提名任董事职务[任命为新董事]。
What does x represent in this equation?
这个方程式中的x代表什么?
The Sunday Times ran an article headlined "The X Brothers".
《星期日泰晤士报》登载了一篇标题为"X兄弟们"的文章。
X rays and antibiotics are adjuvant to surgery. X.
光和抗生素是外科手术上的辅助医疗物。