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What is a laser?What is the difference between laser and photon?
1. What is a laser? Laser is the light produced by certain substances when they are excited by energy. This substance can be a gas, a liquid or a solid,...
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What is a laser?What is the difference between laser and photon?
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In the past 5 years, the development of beauty instruments and medical devices in China
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What is a photon? Why can only pulsed bright light and lasers be used for cosmetic purposes?
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January 2024 exhibition in Tokyo, Japan