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genhunter

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超级老快: 金币+30, 翻译EPI+1, ★★★很有帮助 2016-08-28 15:01:21
声子能量高  ? 电子?

Glass, in comparison with other materials, can be manufactured with low cost, and it is the best option for optical fiber material. The most important features for oxide glass as matrix are its  good physicochemical stability and mechanical strength, the disadvantage is its high electron energy, which leads to extreamely low or non-obtainable  upperconversion rate.
离成功还差一点
2楼2016-08-28 14:21:29
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