ureas
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n.
尿素塑料（类）；
英英释义
urea[ 'juəriəs ]
n.the chief solid component of mammalian urine; synthesized from ammonia and carbon dioxide and used as fertilizer and in animal feed and in plastics
同义词：carbamide
词组短语
urea nitrogen尿素氮；脲氮
urea formaldehyde脲醛；尿素甲醛
urea formaldehyde resin脲醛树脂；尿素树脂；脲醛尸
urea resin尿素甲醛树脂；脲醛树脂；尿素树脂
urea peroxide过氧化脲
urea fertilizer尿素；尿素肥料
权威例句
ω-Carboxyaryl substituted diphenyl ureas as raf kinase inhibitorsA General Synthesis of Unsymmetrical Tetrasubstituted Ureas
Rational design of potent, bioavilable, nonpeptide cyclic ureas as HIV protease inhibtors
Rational design of potent, bioavailable, nonpeptide cyclic ureas as HIV protease inhibitors.
Recognition and activation by ureas and thioureas: stereoselective reactions using ureas and thioureas as hydrogen-bonding donors.
Complexation-Induced Unfolding of Heterocyclic Ureas. Simple Foldamers Equilibrate with Multiply Hydrogen-Bonded Sheetlike Structures1
Asymmetric cooperative catalysis of strong Brønsted acid–promoted reactions using chiral ureas
Synthesis of imides, N-acyl vinylogous carbamates and ureas, and nitriles by oxidation of amides and amines with Dess-Martin periodi...
Synthesis, characterization, and cytocompatibility of elastomeric, biodegradable poly(ester-urethane)ureas based on poly(caprolacton...
Synthesis and characterization of new soluble aromatic poly(ureaimide)s from N,N′‐dimethyl‐N,N′‐bis(aminophenyl)ureas and aroma...
1. Experiments were conducted to test inhibition of the N nitrophenyl ureas to Pyricularia grisea sacc and Xanthomonas campestris Pv.
进行了氮硝基脲类农药对水稻稻瘟病菌、水稻细条病菌室内抑制作用的初步研究。
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2. By consulting concerned literatures, we reviewed the biological activities of triazole , 1,3,4-thiodiazole, acyl ureas and ureas, and the synthetical methods of acyl ureas and ureas.
本文通过文献检索，对酰基脲和脲类化合物的生物活性与合成方法以及三唑、1，3，4-噻二唑类化合物的生物活性做了比较全面的综述。
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3. By retrieving concerned Literatures, this article discussed comprehensively the biological activities of phenyl ureas, acyl ureas and tetrazoles.
本文通过检索文献，对苯脲类、酰基脲类、酰基硫脲类及四唑类化合物的生物活性作了系统的论述。
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4. Preliminary results indicate that many of acyl ureas exhibited higher activity on auxin , especially for those with chloride substituted on the phenyl ring .
生测结果表明：两个系列酰基脲化合物，均表现出一定程度的生长素活性。
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5. A new process for the synthesis of ureas based on the selective redox carbonylation of amine and nitro compounds was described.
本文概述了胺硝基物选择氧化还原羰基化生成脲的新工艺路线。
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6. Results also showed that the molecular weight of PEG flexible spacers in chain-extended ureas basically had no influence on the reactive activity of the ureas.
扩链脲的反应活性基本不受分子中聚乙二醇链段分子量的影响。
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7. The invention relates to novel specifically trifluoromethyl and halogen substituted 1,3-diphenyl ureas and their use as active ingredients in the preparation of pharmaceutical compositions.
本发明涉及新的特别由三氟甲基和卤素取代的1，3-二苯基脲，以及它们在药物组合物的制备中作为活性成分的用途。
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8. Radiation curable 1,3,5-triazine carbamates and 1,3,5-triazine ureas containing vinyl groups, methacryloyl groups, or acryloyl groups.
可辐射固化的含有乙烯基、甲基丙烯酰基或丙烯酰基的1，3，5-三嗪氨基甲酸酯和1，3，5-三嗪脲。
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9. The third chapter was devoted to the study of quantitative structure-activity relationship(QSAR) for indazolyl ureas as TRPV1 antagonists.
第三章致力于吲唑脲类辣椒素受体（TRPV1）通道拮抗剂的定量构效关系（QSAR）研究。
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10. Eight substituted ureas herbicides were synthesized with bis(trichloromethyl) carbonate(BTC). The production structures were identified by elemental analysis and IR.
用二（三氯甲基）碳酸酯（BTC）代替光气，“一锅法”合成了8种取代脲类除草剂，产物结构经元素分析、IR确证。
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11. The result of the test shows that the activity against the plant pathogen fungi of most of the tested compounds is better than that of Benzoylphenyl Ureas as the control (PH6042).
实验结果表明大部分被测试化合物的抗植物病原体真菌活性优于对照品灭幼唑（PH6042）。
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12. The result of the test shows that the activity against the plant pathogen fungi of most of the tested compounds is better than that of Benzoylphenyl Ureas as the control (PH6042).
实验结果表明大部分被测试化合物的抗植物病原体真菌活性优于对照品灭幼唑（PH6042）。
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ureas
