单词：sulfate aerosol
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Uint7 II. Basic Listening Practice 1.Script M: Now we have satellite and high-powered microscope, its easy to think we know everything about the world; but we still dont understand EI Nino. W: Right. Scientists all over the world over are even uncert
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Protamine sulfate is a drug that reverses the anticoagulant effects of liver compounds such as heparin. Protamine is extracted from the sperm of salmon and other species of fish, and then made into a protamine sulfate injection which is a necessary d
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My fingers feel as though theyve got frostbite, an abandoned spray can lies on the table and most of my kitchen appears to be dusted in a light frosting of silver. 我的手指好像得了冻疮，一个喷雾器扔在桌上，厨房的大片区域看起
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We keep pumping carbon dioxide into the atmosphere and the earth keeps warming. Climate scientists have predicted that the consequences of unchecked warming could result in everything from catastrophic flooding to larger and more deadly hurricanes. S
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Science and technology 科学技术 3D manufacturing 3D制造 Print me a phone 给我打印一部电话 New techniques to embed electronics into products 新技术直接把电子元件嵌入产品中 OPEN up any electronic device and inside there are
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First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先，我对您说，海底有锌、铁、银、金等矿藏，开发并不是不可能的事。
《海底两万里》中英双语有声读物