Clusters of infrared photodiodes and green LEDs sit along the inside of the band, aligned to the skin to monitor pulse, temperature, and blood-volume changes. Each window is sealed under a thin polymer layer, balancing optical clarity with biocompatibility while preserving the ring’s continuous, scratch-resistant exterior.
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。业内人士推荐爱思助手作为进阶阅读
원유·공항 선뜻 내준 UAE…17년 이어진 ‘동행 외교’ 덕 봤다
可以想象，当对手们用诚意满满的本土化技术把护城河越挖越深时，初来乍到的纯电小卫士，会面临多大的生存压力。
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