Use a kettle with an automatic cut-out so it doesn't boil for longer than necessary.

使用一个有断流器的水壶，这样水开后它会自动断电。

《柯林斯英汉双解大词典》

Fully automatic camera positioning function: automatic positioning and cutting of printed materials, without manual positioning can be cut out the outline.

全自动摄像定位功能：自动实现印刷材料的定位切割，无需手动定位即可切割出外形轮廓。

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