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insecticides
相关语句
  杀虫剂
    DEVELOPMENT AND APPLICATION OF CHITIN SYNTHESIS-INHIBITING INSECTICIDES
    几丁质合成抑制剂类杀虫剂的发展和应用
短句来源
    Use of X-5 Resin Miniature Cartridge in Concentration of Six Trace Pyrethrins Insecticides in Biological Samples
    用X-5树脂柱浓集生物体液中六种除虫菊酯类杀虫剂
短句来源
    A STUDY ON THE SYNTHESIS OF 1-SUBSTITUTED AZACYCLOHEPTAM-2-ONES AND THEIR SYNERGISTIC ACTION ON INSECTICIDES
    1-取代氮杂环庚烷-2-酮的合成及其对杀虫剂增效作用研究
短句来源
    The Control Effects of 14 Insecticides to Plutella xylostella Linnaeus
    14种杀虫剂对小菜蛾的药效试验
短句来源
    Study on Stabilization of 32 Pesticide Mixtures and 26 Insecticides
    32种农药复配制剂及26种杀虫剂单剂热贮稳定性的研究
短句来源
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  “insecticides”译为未确定词的双语例句
    Studies on the Relationship between the Symptoms and Mechanism of Different Kinds of Insecticides
    不同类杀虫药剂的致毒症状与作用机理关系研究
短句来源
    The efficiency of the insecticides followed this order: Compound 1≈6>5>2>3,4 and 7 The activity of 3-phenoxybenzyl and 4-(methoxymethyl)benzyl esters arc more active than-those of α-trichloromcthyl 3,4-dichlorbenzyl esters.
    据测定,杀虫活性次序如下:化合物■≈■>5>2>3、4和73-苯氧基苄酯和4-(甲氧甲基)苄酯的杀虫活性一般均高于α-(三氯甲基)-3,4-二氯苄酯。
短句来源
    The efficiency of the insecticides followed this order: Compound 1≈6>5>2>3,4 and 7 The activity of 3-phenoxybenzyl and 4- ( methoxymethyl ) benzyl esters arc more active ihan those of -trichloromethyl 3,4-dichlorbenzyl esters.
    据測定,杀虫活性次序如下: 化合物1≈6>5>2>3、4和7 3-苯氧基苄酯和4-(甲氧甲基)苄酯的杀虫活性一般均高于α-(三氯甲基)-3,4-二氯苄酯。
短句来源
    Effectiveness of these insecticides at 1d,5d,15d and 40d after spraying were compared.
    比较了药后 1、5和 15天对成虫防效及药后 15天按卵量、药后 40天按幼虫量计算的防效之差异。
短句来源
    Results: In lab, the KT50 of aircraft aerosol insecticides on mosquito and flies was 1.0 - 3.1 rain and 4.8 - 7.5 min on Blattella germanica, the 24 h mortality rates were both 100% .
    结果:色机专用杀虫气雾剂在实验室按0.25/g筒~1.0 g/筒剂量处理后对蚊、蝇的KT50为1.0min~3.1 min,对德国小蠊的KTso为4.8min-7.5 min,24 h死亡率均达100%。
短句来源
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  insecticides
The molecular design, synthesis and optimization of lead compounds are important to the development of insecticides.
      
The preparation is compatible with insecticides (carbofos, vismetrin, talstar, and applaud) and certain fungicides (such as baitan).
      
Effects of p-Nitrophenol and Organophosphorous Nitroaromatic Insecticides on the Respiratory Activity of Free and Immobilized Ce
      
Improving the Selectivity of the Determination of Organophosphorus Insecticides and Carbamates by Enzyme Assay
      
The structures, properties, methods of chemical synthesis, and insect hormonal activities of insecticides of a new 1-alkyl-1,2-diacylhydrazine series are reviewed.
      
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Dichloroacetaldehyde, an intermediate of organic insecticide, can be synthesized by the catalytic chlorination of paraldehyde or aldehyde. The selection of catalysts, the temperature of various stages of the reaction, etc., were investigated and dichloroaldehyde was obtained in good yields.

二氯乙醛是合成杀虫剂滴滴滴的中间体,它可由三聚乙醛或乙醛接触氯化而制得。作者对氯化反应的条件,包括触媒选择、反应温度的分段控制等作了详细的研究,并获得较好收率的结果。 试验证明,三聚乙醛或乙醛接触氯化的触媒,以三氯化銻活性为好,硫黄次之。反应温度、触媒用量及反应物料分子比等条件必须严加控制。产品中二氯乙醛含量为90~95%,二氯乙醛的收率可达75~78%。 三聚乙醛或乙醛接触氯化的主要副反应是聚合生成焦油状蒸馏残渣。升高反应温度或增加三氯化銻触媒用量,均促使聚合副反应的增加,以致二氯乙醛收率下降。

Forty thiophosphates containing naphthalene ring have been synthesized and tested as insecticides.The results indicated that most of these compounds were lowly toxic and some of them have high biologic activities to insects.

合成得四十个不同活性基团的萘环硫代磷酸酯化合物,并探讨其毒性和对杀虫性能的影响。结果表明某些化合物具有低毒和良好的杀虫性能。

This paper reviews the various manufacturing processes of Trichlorfon (O, O-dimethyl-2, 2, 2-trichloro-1-methoxylphosphonate) which is known as an effective and lowpoison insecticide. By means of chemical kinetic and macrokinetic analyses, this complex reaction can be reasonably simplified, thus enabling us to present a few suggestive remarks. Theoretical bases for finding out practical models for optimum control of the existing commercial equipment are introduced.

本文对高效低毒农药敌百虫的各种工艺生产过程作了评述。通过化学动力学和宏观动力学分析,对这一复杂反应进行了合理简化,提出了几种模型设想,为现有生产装置实现最优控制求取实用模型提供了理论依据。

 
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