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Thioxanthone photoinitiator was synthesized from DTSA by chlorination and condensation with isopropylbenzene in the presence of anhydrous AlCl3.

苯甲酸(DTSA)经过酰氯化、氯代、然后与异丙苯在三氧化铝催化下缩合成为光引发

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HPLC method for determination of phenylephrine hydrochloride, paracetamol, caffeine anhydrous,salicylamide and brompheniramine maleate in Liufenkamin tablets was established.

建立HPLC法测定柳酚咖敏片中盐酸去氧肾上腺素、对乙酰氨基酚、无水咖啡因、水杨酰胺、马来酸溴苯那敏含量。

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The hexadecanol bischloroacetate was synthesized fastly with the technique of microwave irradiation with the anhydrous cupric sulfate as catalyst.

研究在无水酸铜催化下,利用微波辐射技术快速合成氯乙酸十六酯方法及影响反应收率因素。

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The massecuite thus obtained is then separated into anhydrous crystals of maltitol and mother liquor by conventional separation methods.

结晶糖膏用常规有分离设备分成麦芽糖醇晶体和母液。

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Methyl 1 phenyl Propanone was synthesized with benzene and iso butyryl chloride by using anhydrous aluminium trichloride as catalyst.

由苯与异丁酰氯在无水三氯化铝作催化件下制备苯基异丙基酮。

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Solid acid alchlor catalyst was prepared from anhydrous aluminium trichloride through liquid solid solvent method,with pretreated bentonite as support.

以无水三氯化铝为原料,并以处理过膨润土为载体,采用液固溶法制备固体酸催化

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Furfuryl propionate was synthesized from furfuryl alcohol and propionyl chloride using hexahydropyridine as catalyst and anhydrous sodium bicarbonate as acid-caputor.

以α呋喃甲醇和丙酰氯为原料,以六氢吡啶为催化,无水碳酸氢钠为缚酸合成α呋喃甲醇丙酸酯。

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When the complex of anhydrous zinc acetate with 1,5-naphthalene diamine was formed, the anhydrous zinc acetate changed from a bidentate ligand to a unidentate ligand.

在无水乙酸锌与1,5-萘胺形成配位络合物过程中,无水乙酸锌结构从双齿型转变成单齿型。

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A new convenient and general one-step route for preparing azines by treating aromtic aldehydes and semicarbazide with anhydrous zinc chloride as catalyst is described.

吖嗪是用途很广泛化合物,如作染料,光敏物质,聚合单体,另外它们还是加成反应母体化合物。

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in most cases, in nature, in need of, in no case, in no time, in no way, in one, in oneself, in operation, in order,

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3G, 401(K), a,

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CNN 听力 2013年4月合集

There were some concerns about a substance, though, called anhydrous ammonia.

为无水氨,但有些人对这种物质表示担心。

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VOA Standard 2013年4月合集

" I can tell you I was there. I walked through the blast area, I searched some houses earlier tonight. Massive, just like Iraq, just like the Murray building in Oklahoma City. Same kind of anhydrous exploded, " he explained.

“我可以告诉我在那里。 我走过爆炸区, 我今晚早些时候搜查了一些房屋。巨大伊拉克一样, 俄克拉荷马城默里大楼一样。 同样无水爆炸, ” 他解释道。

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in place of, in point of fact, in position, in power, in practice, in praise of, in principle, in private, in proportion, in proportion to,

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3G, 401(K), a,
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