脲

Based on the possible degradation products, Microbial degradation pathways of metsulfuron-methyl is concluded as follows: after the cleavage of the sulfonylurea bridge, 2-amino-4-methoxy-6-methyl-triazine is demethylated and the annularity reaction of sulphanilamide occurs.

甲磺隆主要降解途径首先是脲桥的断裂，然后6-甲氧基-4-甲基-2-氨基-三氮嗪进一步脱甲基，而磺酰胺类物质将进一步脱氨基环化。

For the synthesis of NHC precursors, there are also several routes: condensation of glyoxal, amines and paraformaldehyde; alkylation of imidazole or monosubstituted imidazole with alkyl halide; annulation of ortho esters and 1,2-diamines; ring closure of hydrazines or amides with acetic anhydride; reduction of thiones with Na/K in THF.

关于N-杂环卡宾前体的合成途径主要有：乙二醛、伯胺和多聚甲醛的缩合反应；卤代烷与咪唑及其取代咪唑的烷基化反应；原甲酸酯与1，2-二胺的成环反应；肼或酰胺与酸酐的环化反应；用Na/K对环硫脲化合物的还原反应。

Patients with type 2 diabetes are frequently treated with oral antidiabetic drugs such as sulphonylureas, biguanides and thiazolidinediones.

2型糖尿病患者经常口服降糖药物如磺脲类，双胍类和噻唑烷二酮类治疗。

The etiology of PCO is incompletely known. The surgical trauma might activate LECs in a wound-healing process. Several experimental studies showed that some agents have been effective in inhibiting LECs proliferation and differentiation, and also in development of PCO, such as anti-metabolites, nonsteroid antiphlogistic drugs, cyclosporin A.

大量的体外实验已经证实抗代谢药物如5-氟脲嘧啶、丝裂霉素、柔红霉素等，环孢霉素A等皆可抑制晶状体上皮细胞的增殖和分化，但这些药物对眼内其他正常组织的毒副作用限制了其临床应用。

Methods The diabetes mellitus rat model was induced by streptozotozin, and then apomorphine was administrated to set ED diabetes model.

采用链脲佐菌素制备高血糖大鼠模型，选择符合要求的模型再用阿朴吗啡诱导，筛选出符合最终造模要求的糖尿病ED大鼠模型。

The study has provided a theory foundation with which we could study the practical production technology of leaching Ag from argentite in acid thiourea system.

该研究为硫脲法从辉银矿中浸出银的实际生产工艺研究提供相应的理论基础。

Exposed argentite could be dissolved in thiourea acidified by sulphuric acid ,since native Ag is not dissolved in non-oxidizing inorganic acids , hydrochloric acid was used to dissolve the sphalerite and to soak out the argentite which was enveloped in sphalerite .

继以硫酸酸化的硫脲溶剂溶解裸露的辉银矿，然后根据自然银在非氧化性的无机酸中不溶的特性，采用盐酸溶解闪锌矿并浸

A secondary efficacy measure, change in maximum atheroma thickness increased in the glimepiride group and decreased in the pioglitazone group.

次要疗效的措施，改变在最高动脉粥样硬化的厚度增加，在格列美脲组和下降，吡格列酮组。

Thiourea and its derivate have an important performance in the analyses of precious metals.Their application to photometric analysis,electrochemical methods,atomic absorption spectroscopy,separation and enrichment of precious metals have been concerned.The related research and development since 1980 have been reviewed.

马媛硫脲及其衍生物(R-NH-CS-NH-R′)以其独特的分子结构在贵金属分析中一直占有重要位置，它们在贵金属的光度分析、电化学分析、原子吸收光谱分析和分离富集等领域中的应用一直为人们所关注，本文重点评述1980年以来相关的研究与发展。

PVC resin, PTFE resin, fumaric acid, anthraquinone, nitroanthraquinone, paraaminophenol, melamine, cyanuric acid, sulfanilic acid, chemical inhibitor 168, azoic coupling component As, stearate, aniline, nitroaniline, pentaerythritol, chlorcosane, sodium calcium, triethylene diamine, sodium benzene sulphinate, m-phthalic acid, thiourea, aniline black dyestuffs, acid dyestuff, etc.

聚氯乙烯树脂、聚四氟乙烯树脂、反丁烯二酸、蒽醌、硝基蒽醌、对氨基苯酚、三聚氰胺、氰尿酸、对氨基苯磺酸、抗氧剂168、色酚As、硬脂酸盐、苯胺、硝基苯胺、双季戊四醇、氯？？？腊、甲酸钙、三乙烯二胺、苯亚磺酸钠、间苯二甲酸、二甲酯五磺酸钠、硫脲、油溶性苯胺黑染料、酸性黑染料等有机化工原料和中间体。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷