Or add iron to hydrochloric acid and boil the solution to dryness.

又或者将铁放入盐酸中，然后将溶液加热变成结晶。

youdao

Or add iron to hydrochloric acid and boil the solution to dryness.

又或者将铁放入盐酸中，然后将溶液加热变成结晶。

youdao