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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.。业内人士推荐Line官方版本下载作为进阶阅读
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报告指出,在整个现代经济史中,人类智慧一直是稀缺的投入要素。一切都能复制或替代,但唯有能够分析、决策、创造、说服、协调的「智慧」,是没法大规模复制的。
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