The 3614/3624 series established a number of conventions that are still in use
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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.，这一点在爱思助手下载最新版本中也有详细论述
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James also hears from Catherine and Jo, who have lived with ME for many years. They describe their diagnostic journeys and how they manage their symptoms in their daily lives.