- 双语例句
1、
This paper studied the catalytic N - alkylation of acetanilide with polyvinyl chloride - pyridine resin.
研究了聚氯乙烯 - 吡啶树脂催化乙酰苯胺的N - 烃基化作用,反应条件温和,产品收率令人满意.
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2、
The process of 2 - chloropyridine chlorination synthesis by pyridine and application were introduced.
介绍了吡啶氯化合成2-氯吡啶的方法和应用.
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3、
This preparation uses dialkyl imidazole salt, alkyl pyridine salt or caprolactam and fatty acid as reactant.
该方法使用带有二烷基咪唑盐 、 烷基吡啶盐或者己内酰胺和脂肪酸作为反应物.
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4、
Triisopropyl phosphite was synthesized and isopropanol using pyridine as an organic base.
采用三氯化磷、异丙醇为原料,吡啶为有机碱合成亚磷酸三异丙酯.
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5、
The typical K - F reagent has disadvantage of high poisonousness and pyridine malodor.
经典K-F试剂缺点是毒性大,且具有吡啶的恶臭.
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6、
A semi - empirical LCAO - MO - AM 1 calculation is performed for some substituted pyridine N - oxide.
在LCAO -MO-AM1 水平上计算了取代氧化吡啶的气相质子化能.
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7、
The factory also undertake pyridine derivatives and various solvent distillation process.
本厂还可承接吡啶类系列化合物及各种溶剂精馏加工.
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8、
The synthetic methods of pyridine bases are reviewed.
综述了国内外吡啶碱类化合物的合成方法.
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9、
The urine samples were collected at 7∶00,11∶00 and 15∶00, and were assayed by modified Aldridge ? s method ( pyridine - p - phenylenediamine mixture ) .
分别于7时 、 11时 和15时收集班前、班中和班末尿样.
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10、
Urine - Determination of thiocyanate - Pyridine － barbituric acid spectrophotometric method.
尿中硫氰酸盐的吡啶-巴比妥酸分光光度测定方法.
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11、
The pyridine was chemisorbed at both Lewis and Bronsted sites on the glass surface.
在玻璃表面上,吡定都是化学地吸收在路易斯和布朗斯特德位置上的.
辞典例句
12、
Recovering pyridine by simple distillation and phase separation with salt was studied.
研究了普通精馏与加盐分相技术在回收吡啶中的应用.
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13、
This review described the preparation and application of crosslinked polyvinyl pyridine resins.
本文综述了乙烯吡啶树脂的合成及其应用.
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14、
Pyridine is a colorless chemical liquid.
吡啶是一种无色的化学液体.
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15、
And the excess volume of toluene - pyridine was measured with the dilatometer.
并用此膨胀仪测定了甲苯 - 吡啶体系的过量体积.
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