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一位美國男子發明了一種可以理發的頭盔，在頭盔裝置中注入剃須膏，只需20秒就可以理一個干凈、整潔的光頭，安全可靠。理發頭盔的發明者鮑里斯說：“當你手工剃頭時，你得前后左右來回移動，而這頂頭盔中有4個刀片同時運作，因此它的剃頭效率是手工剃頭的四倍。”

An enterprising US man has created a helmet capable of shaving a person's head in a matter of seconds.

A video posted to YouTube by user 'mattinbrooklyn' shows the inventor demonstrating the device on a volunteer.

The helmet device injects shaving cream and operates four razors simultaneously, and appears to provide a clean, tidy and safe haircut in 20 seconds.

"When you shave your head manually you move back and forth and laterally, which is what the helmet is doing right now, times four," the inventor, identified only as Boris, said.

At the end of the process, the volunteer in the video has a closely-cut shaved head with no sign of cuts or scratches.

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（來源：news.ninemsn.com，編輯：崔旭燕）