文语站

位置:首页 > 造句 > 

astatine造句

造句2.4W

any of the chemical elements fluorine or chlorine or bromine or iodine or astatine.

astatine造句

Any of a group of five chemically related nonmetallic elements including fluorine, chlorine, bromine, iodine, and astatine.

标签:造句 astatine