钡、锶属于同族元素，性质相似，分离困难。

Barium and strontium belong to one family, they were some alike in nature and difficult to be separated.

youdao

钡、锶属于同族元素，性质相似，分离困难。

Barium and strontium belong to one family, they were some alike in nature and difficult to be separated.

youdao