一个纽扣电池是小型的圆形的电池，总高度小于其直径。

A button cell battery is a round small cell or battery where the overall height is less than the diameter.

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一个纽扣电池是小型的圆形的电池，总高度小于其直径。

A button cell battery is a round small cell or battery where the overall height is less than the diameter.

youdao