单词:distributed raman amplifier
分布式拉曼放大器
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Back at the explosives lab, examiners use a high-tech instrument called a Raman spectrometer, a device that determines if a package contains explosive material. With the Raman, what we are doing is th
发表于:2018-12-07 / 阅读(42) / 评论(0)
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3 Where are the two speakers? [A] In a restaurant [B] On a farm [C] At the man's home
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The State Grid Corporation of China, the country's largest energy distributor is taking further steps to facilitate the use of distributed power generation. This is an incentive for individuals who have the intention and capability to build their own
发表于:2019-02-14 / 阅读(54) / 评论(0)
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