查询词典 pesticide

Objective: To study synthesis of the new type pesticide Oxamyl.

目的研究新型杀虫剂杀线威的合成方法。

The results show that the method meet the demands of pesticide residue analysis.

该方法的准确度、精确度及灵敏度均达到农药残留分析的要求。

Objective To investigate the pesticide residues in vegetables in Changchun of China.

目的 了解长春市市场销售蔬菜中农药残留的情况。

A Shanghai Pesticide Research Institute, Shanghai 200032, China

a 上海市农药研究所，中国，上海 200032

The organochlorine pesticide were extracted with acetone and petroleum ether, and purified with sulfuric acid.

用丙酮提取样品中残留的有机氯农药，石油醚萃取，萃取液以浓硫酸净化。

In order to find active pesticide leading compounds, thinking about that triazolothiadiazoles had various biological activities, this paper designed and synthesized 11 novel title compounds from 3-substituted-4-amino-5-mercapto-1,2,4-triazoles with heterocyclic carboxylic acid via cyclization in the presence of phosphoryl chloride by the princple of combination of active strucural moieties. The structures of the title compounds were characterized by melting point, IR, 1HNMR and elemental analysis.

为了寻找高活性农药先导化合物，考虑到三唑并噻二唑衍生物具有广泛的生物活性，本文利用活性亚结构拼接原理，将活性基团分别引入1，2，4-均三唑并[3，4-b]-1，3，4-噻二唑杂环的3位和6位，合成了未见文献报道的3，6-二取代均三唑并[3，4-b]-1，3，4-噻二唑类化合物11个，并用IR、1HNMR及元素分析测试技术对其进行了结构表征。

To undergo photodecomposition, a pesticide must first absorb light energy.

农药为进行光解作用，必须首先吸收光能。

The ultraviolet component of sunlight is responsible for most pesticide photolysis.

阳光的紫外部分是农药光解的最重要因素。

Objective To explore the therapeutic effect of plasmapheresis on acute organophosphorus pesticide.

目的 探讨血浆置换术在人工肝治疗急性有机磷农药中毒中的作用。

In rural area of Lujiang, the high-risk group of pesticide poisoning is young adults, the high-risk group of productive poisoning is male group, and that of non-productive poisoning is female group; the most dangerous season is the third quarter of the year, the most affected area is polder.

在庐江农村，加强农药中毒的防治工作重点应是40~50岁的人群，生产性中毒防治重点人群是男性，非生产性中毒人群是女性；重点季节放在第3季度，重点地区是圩区。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。