... ruby ranging laser 红宝石测距激光器 ruby rod 红宝石棒 rudimentary compound microscope 基本组合显微镜 ...
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50年前的这个星期天，休斯研究实验室的西奥多.梅曼和科学家用高功率闪光灯照射红宝石棒，引发光束相干： 第一台激光器 。
Fiftyyears ago this Sunday, Theodore Maiman and his fellow scientists atHughes Research Laboratory shined a high-power flash lamp on a rubyrod, triggering a beam of coherent light: the first laser.
以蓝宝石、红宝石为原材料，按用户要求生产各种规格的宝石镜片、宝石绝缘环、宝石筒、宝石棒等。
Windows. Insulation Ring Jewel, Tubes and Rods are made from Sapphire and Ruby. We manufacture above-mentioned products as per customer's design & specifications.
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