离子是存在于大气层中的电荷,它们存在于我们所呼吸的空气中。
Ions are electric charges that exist in the atmosphere, in the air that we breathe.
youdao
负离子是一种带负电荷的空气离子。
The anion is one kind of air ion with negative electric charge.
应用推荐
模块上移
模块下移
不移动