actinium-X

常见例句

actinium X
[毉] 錒X
We use x as the symbol for an unknown quantity.
我們用x表示一個未知數。
Ms X has been named for the directorship/named as the new director.
某女士已被提名任董事職務[任命爲新董事]。
What does x represent in this equation?
這個方程式中的x代表什麽?
The Sunday Times ran an article headlined "The X Brothers".
《星期日泰晤士報》登載了一篇標題爲"X兄弟們"的文章。
X rays and antibiotics are adjuvant to surgery. X.
光和抗生素是外科手術上的輔助毉療物。