为了全面评价乙氰菊酯对鱼类的安全性，本实验研究了鲤鱼在不同浓度乙氰菊酯0。
To evaluate the security of cycloprothrin to cap thoroughly, the effects of different (concentration) cycloprothrin at 0.
在氟化钾催化下，芳香醛与氰乙酸乙酯发生克脑文格尔缩合反应，得到高产率的缩合产物。
The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield.
三聚氰胺是通过乙腈和水的混合物将其从肌肉组织中提取出来的。
Melamine is extracted from muscle tissue with a mixture of acetonitrile and water.
以三聚氰胺及未改进的乙二醛为基质的抗水剂，因本身会发生聚合反应，会造成纸张质量的负面影响。
The water-resistance agent with melamine and un-improved glyoxal as matrices has negative effects on the paper quality because of the polymerization potential of its own.
在氟化钾催化下，芳香醛与氰乙酸乙酯发生克脑文格尔缩合反应，得到高产率的缩合产物。且只得到E式异构体。
The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield. Only the E isomers could be isolated.
研究了5，5-二甲基乙内酰脲（DMH）无氰脉冲镀银工艺。
The process of cyanide-free silver pulse electroplating is investigated in 5,5-dimethyl hydantoin(DMH) bath.
地克珠利、环丙氨嗪、莱克多巴胺、牛至香酚、氯氰碘柳胺钠、双乙酸钠、乙氧基喹啉、大蒜素、脲酶抑制剂。
Diclazuril, Cyromazine, Ethoxy Quinoline, Closantel Sodium, Ractopamine, Oregano Oil, Garlicin, Urease Inhibitor etc. raw material and 100 various products such as preparation.
本文对吡嘧黄隆生产中的原料和中间体氰乙酸乙酯，乙氧基甲叉氰乙酸乙酯和吡唑胺进行了致敏性试验研究。
The sensitization of raw material and intermediate of pyrazosulfuron-ethyl was studied using guinea pig. The result indicated that ethoxy methylene cyanacetic ester is sensitive agent.
在碱性条件下，用氨基乙酸与二硫化碳、氯甲酸乙酯反应合成了异硫氰基乙酸乙酯，总收率为4 8。
Isothiocyanatoacetate ester is synthesized by the reaction of aminoacetic acid with carbon disulfide and ethyl chloroformate in the presence of an alkali with the overall yield of 48.
本文用2-氯-5-氯甲基吡啶经氨基化，和N-氰基乙亚胺酸乙酯反应，最后甲基化得到吡虫清。
In this thesis, 2-chloro-5-chloromethyl pyridine is ammoniated, which followed by the reaction with N-cyano ethyl ethylimidoate, finally is methylated to gain the objective product.
方法原甲酸三乙酯与氰乙酸乙酯缩合，然后和羟乙基肼经环合、水解等一锅法合成5-氨基吡唑-4-甲酸，然后在亚硫酸钠存在条件下加热脱羧得到5-氨基-1-羟乙基吡唑。
METHODS 5-amino-1-hydroxyethyl pyrazole-4-carboylic acid was synthesized through condensation of ethyl cyanoacetate and triethyl orthoformate followed by one-pot methodology of cyclization, hydolysis.
方法原甲酸三乙酯与氰乙酸乙酯缩合，然后和羟乙基肼经环合、水解等一锅法合成5-氨基吡唑-4-甲酸，然后在亚硫酸钠存在条件下加热脱羧得到5-氨基-1-羟乙基吡唑。
METHODS 5-amino-1-hydroxyethyl pyrazole-4-carboylic acid was synthesized through condensation of ethyl cyanoacetate and triethyl orthoformate followed by one-pot methodology of cyclization, hydolysis.
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