Since the elements were arranged in a periodic chart, it has been widely used all over the world.

自从元素排成周期表以来，周期表在世界各地得到广泛应用。

youdao

Since the elements were arranged in a periodic chart, it has been widely used all over the world.

自从元素排成周期表以来，周期表在世界各地得到广泛应用。

youdao