南華早報Chinese scientists make toothbrush that uses electric shocks to reduce plaque
作者 Shi Huang全文約 2,786 字
文章摘要
南華早報 · 文章頁摘要The self-charging devices can generate tiny currents designed to disrupt the spread of bacteria in the mouth.
No matter how thoroughly you brush your teeth in the morning and evening, the battle against bacteria is almost certain to be lost. Within a few hours...