What about caesium-137?

那铯- 137呢？

youdao

Caesium reduces the size of your picture up to 90%, preserving the original quality.

铯使你的图片大小高达90%，保留原有的品质。

youdao

Caesium reduces the size of your picture up to 90%, preserving the original quality.

铯使你的图片大小高达90%，保留原有的品质。

youdao