小米汽车：将筹建安全顾问委员会及公众安全沟通机制
Current X-ray lasers require facilities that are kilometres long. A cavity-based set-up about 66 metres in length has been developed that uses highly reflective mirrors to enable the generation of high-intensity pulses of narrow-band X-ray radiation. This promises to overcome the limitations of current X-ray lasers.，更多细节参见heLLoword翻译官方下载
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"itemId": "66c66152-0ac8-41cd-a450-2ee827767e8a",，这一点在91视频中也有详细论述
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