单词：laser-Raman spectroscopy
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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
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[0:0]lable laboratory lad lag标签,标记 实验室 男孩,小伙子 落后,滞后 [1:9.3533]lamb landlord landscape lane羔羊，小羊 地主，房东，店主 风景，景色 小路，小巷 [1:52.8522]largely laser latter laughter大部分，主要地 激光器 后者的，末了的 笑，笑声 [2:36.6
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