查询词典 residue

Because this kind of diesel oil has relatively high biological toxity and the residue is relatively permanent, people show more and more attention on how to remediate the polluted environment.

由于石油类具有较高的生物学毒性、在环境中的残留时间较长、产量大，因此如何对受其污染的环境进行有效修复日益受到社会关注。

It is found that the concentration of nitric acid has great effect on reclaiming rate of lead in the processing of nitric acid leaching-lead deposition after investigating the preparation of tribasic lead sulphate from bismuth waste residue by ammonium hydrogen carbonate transformation method.

通过对铋冶炼浸渣采用碳酸氢铵转化法合成三碱式硫酸铅的工艺研究，得出在硝酸浸出—硫酸沉铅工艺过程中影响铅回收率的主要因素为硝酸质量浓度。

The processing principle for the preparation of tribasic lead sulphate from bismuth hydrometallurgy waste residue by ammonium hydrogen carbonate transformation-nitric acid leaching-lead deposition with sulphuric acid-sodium hydroxide synthesis is introduced.

介绍了铋冶炼浸渣采用碳酸氢铵转化—硝酸浸出—硫酸沉铅—氢氧化钠反应合成三碱式硫酸铅的工艺原理。

The thermal property studies indicate that the mass loss of compound B was 54.39% at 242.2~750℃, and when the temperature was 1000℃, there was 25.11% char residue left, which showed that the title compound has a good thermal stability and char forming capability. Using acetonitrile as the solvent instead of trichloromethane or 1, 2-dichloethane gave higher yield. During the synthesis, the yield was very low when triethylamine was used as acid acceptor alone, and when a little amount of 4-dimethylaminopyridine was added at the same time, the yield could be 81%.

结果表明，所合成的化合物B的结构与预期的结构一致；热性能研究表明，化合物B在242.2~750℃质量损失为54.39%，1000℃时仍有25.11%的炭残渣，显示出优异的热稳定性和成炭性；在相同反应条件下，用乙腈作为溶剂的反应产率比使用氯仿和二氯乙烷为溶剂的高，并且在合成过程中，单独使用三乙胺作为缚酸剂时产率很低，而当同时加入少量4-二甲氨基吡啶时，产率可达81%。

A high-performance liquid chromatography-tandem mass spectrometric method was established for the determination of residue of malachite greenin Trionyx sinensis .

建立了中华鳖中孔雀石绿残留量的液相色谱。串联质谱检测方法。

New process for recovering of triphenylphosphine and triphenylphosphine oxide from waste residue was proposed.

用化学反应－结晶联用法从Wittig反应废渣中回收三苯基膦和三苯基氧膦。

It was found that PS II was characteristics of tyrosyl residue fluorescence.

结果表明，PSII表现出酪氨酸荧光的特性。

The result shows that when HPLC adopts 254 nm as scan wavelength, and the mixture of acetonitrile and water according to appropriate proportion as flowing phase, the parameters such as accuracy, repetition and precision et al for the method are all good to satisfy the essential rules of pesticide residue determination.Chapter three is the degradation of Abamectin in soils. The results show:(1) The decomposition of Abamectin is fastest in Aquic Cambosols while slowest in Udic Cambosols in five kinds of different soils.

第三章研究了阿维菌素在土壤中的降解，结果表明：(1)五种不同类型土壤中，阿维菌素在潮湿雏形土中降解最快，而在湿润雏形土中降解最慢；(2)土壤有机质含量与阿维菌素半衰期相关性较强，相关系数为0.9323，而土壤酸碱度、总氮含量、阳离子交换量和田间最大持水量等因子与阿维菌素半衰期相关性较小，说明影响阿维菌素在土壤中降解的最主要因子为有机质含量：(3)土壤有机质、土壤温度和农药浓度等因素对阿维菌素在土壤中的降解有较大影响，此外灭菌条件下其降解半衰期远大于未灭菌时的半衰期，这表明阿维菌素在土壤中的降解可能和土壤微生物有关。

Name;(2)"EMPTY/UNCLEANED" or "RESIDUE-LAST CONTAINED";(3)"LIMITED QUANTITY" Inset"×"in appropriate

的&或&含有残余物-上一次盛装物&；(3)&限量**如需要，见《国际危规》第2卷第3.4.6 □封闭式

"Proprietary / trade names alone are sufficient. If applicable:(1) the word "WASTE" shoud proceed the name;(2)"EMPTY / UNCLEANED" or "RESIDUE-LAST CONTAINED";(3)"LIMITED QUANTITY shoud be added.**When required in item 5.4.1.1,Volume 1 of the IMDG Code ***When REquired

&仅使用专利商标/商品名称是不够的，如适合：（1）应在品名前加&废弃物&；（2）&空的未经清洁的&或&含有残余物—上一次盛装物&；（3）&限量**如需要，见《国际危规》第Ⅰ卷第5.4.1.1款***需要时

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。