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学学怎么发音的 dextro
dextro
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记录和聆听的发音
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您可以将 dextro 的音频发音贡献给 HowToPronounce 词典。
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恭喜! 你已经得到了发音dextro权利。 跟上。
哎呀! 似乎喜欢你发音dextro不是正确的。 你可以再试一次。
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您可以将 dextro 的音频发音贡献给 HowToPronounce 词典。
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谢谢你的贡献
恭喜! 你已经得到了发音dextro权利。 跟上。
哎呀! 似乎喜欢你发音dextro不是正确的。 你可以再试一次。
原始音频
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含义为 dextro
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例子中的一个句子
The a-propyl piperidine so obtained is the inactive (racemic) form of conine, and it can be resolved into the dextroand laevo-varieties by means of dextro-tartaric acid, the d-conine d-tartrate with caustic soda giving d-conine closely resembling the naturally occurring alkaloid.
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Fischer's a-acrose therefore led to the synthesis of the dextro and laevo forms Gf mannose, glucose and fructose; and these substances have been connected synthetically with many other sugars by means of his cyanhydrin process, leading to higher sugars, and Wohl and.
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The name is applied in commerce to a complex mixture of carbohydrates obtained by boiling starch with dilute mineral acids; in chemistry, it denotes, with the prefixes d, 1 and d+l (or i), the dextro-rotatory, laevo-rotatory and inactive forms of the definite chemical compound defined above.
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Thus, Pasteur showed that Penicillium glaucum, when grown in an aqueous solution of ammonium racemate, decomposed the dextro-tartrate, leaving the laevotartrate, and the solution which was originally inactive to polarized light became dextro-rotatory.
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The identity of the formulae and osazones of d-mannose and d-glucose showed that the stereochemical differences were situated at the carbon atom adjacent to the aldehyde group. Fischer applied a method indicated by Pasteur in converting dextro into laevo-tartaric acid; he found that both d-mannonic
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翻译 dextro
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添加 dextro 详细信息
dextro 的同义词
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反义词 dextro
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十二月 21, 2024
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十二月 22, 2024
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