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- concentration of pesticide fog 药雾浓度
- The growth of Bufo melanostictus tadpoles in the water containing different concentrations of pesticide dichlorvos (DDVP) was studied using the static-renewal toxicity method. 采用静态换水法研究了杀虫剂敌敌畏(dichlorvos;DDVP)对黑眶蟾蜍(Bufo melanostictus)蝌蚪的急性毒性和生长发育、生理活动的影响.
- A method for the determination of water content in emulsifiable concentrate of pesticide Jingyebao has been studied by gas chromatography on the GDX _ 102 column. 采用气相色谱法在GDX_102色谱柱上分离和测定净叶宝系列乳油中的水分;
- There is a concentration of people in big cities. 大城市人口集中。
- It focussed on the degradation relations to the molecular structure of pesticides, the concentration of pesticides and the active microbes. 着重探讨了农药分子结构、浓度及活性微生物与农药生物降解之间的关系。
- The effect of surfactants on the uptake of pesticides depends on the structure (hydrophobe and hydrophile moieties) and concentration of the su... 表面活性剂对农药叶面吸收的影响更复杂,与其亲水基及亲脂基结构以及浓度均有关系。
- What is the concentration of salt in sea water? 海水中盐的含量是多少?
- S is the concentration of unpaired nucleotides. S是不配对的核苷酸的浓度。
- The concentration of ethylene is on the high side. 乙烯浓度偏高。
- L-1 was the optimal spraying concentration of. L-1为最佳喷施浓度。
- Q: Does the testing need concentration of the mind? 问:测试时需要集中精神吗?
- They strongly recommended concentration of offer. 他们极力建议集中报盘。
- The exercises demand great concentration of mind. 这种练习要求全神贯注。
- Having a high concentration of acid. 酸性的含高浓度酸的
- The fertility of the soil has been greatly improved by the use of pesticides. 土壤施用杀虫剂後肥力大增。
- Residues of pesticides can build up in the soil. 残余的杀虫剂会在土壤中积淀起来。
- Based on the esterase inhibition actions of pesticides,different concentrations of dichlorvos,trichlorfon,malathion and carbaryl were determined by free and immobilized chicken liver esterase. 利用农药对酯酶活力的抑制反应,分别采用游离的和固定化的鸡肝酯酶,对不同浓度的敌敌畏、敌百虫、马拉硫磷和西维因进行了测定。
- The fertility of the soil have is greatly improved by the use of pesticide. 土壤施用杀虫剂後肥力大增。
- Labels shall be printed or pasted to the package surface of pesticide products. 农药产品应当在包装物表面印制或贴有标签。
- Data on the world production and use of pesticides is fragmentary. 世界上有关农药的生产和利用的材料是很分散的。