脲

In order to provide theoretical reference to the burl's directional cultivation and utilization research was done on Populus tomentosa,Salix matsudana and Robinia pseudoacacia,and the pH value, buffering capacity of acid and alkaline,curing time of UF of various species of the normal wood and the burl wood were compared.

为了给瘤材的定向培育和合理加工利用提供科学依据，以自然生长的、带有树瘤的毛白杨、旱柳、洋槐为试验材料，对各树种的正常材和瘤材的pH值、酸碱缓冲容量、与脲醛树脂胶固化时间等指标，进行对比研究。

Commitment to the province on September 5 and focus on key project "BT series of complex new biological pesticide formulations of the Development and Application" and other 13 provinces and cities focus on science and technology research projects to promote the Bt pesticide, such as the practical use of biological research, biological pollution-free vegetables Pesticides "Cabbageworm of Hope" was the promotion and application of scientific and technological progress in Yangzhou City, third place; scientific and technological achievements "BT fluoride bell urea mixture of the Development and Application" through the identification.

承担并主持省九五重点攻关项目"BT系列生物杀虫剂复配新剂型的研制与应用"等13项省市重点科技项目研究，推动了Bt等生物农药的实用化研究，无公害蔬菜生物农药"青虫灵"的推广应用获得扬州市科技进步三等奖；科技成果"BT氟铃脲复配剂的研制与应用"等通过鉴定。

A new process,urea- calcium cyanamide method,for producing thiourea from urea and hydrogen sulfide is proposed.

利用尿素和硫化氢等原料制备硫脲，提出了尿素-氰氨化钙法新工艺。

Ingredients: Rose oil, rose fruit Oil, clove flower oil, deionized water, isopropyl myristate, glycerol, propylene glycol, polyethylene glycol -400, central PDMS, poly dimethyl siloxane, PDMS alcohol, polyacrylamide, C13-14 iso-paraffin, octoic acid / capric Acid Triglyceride, lauryl alcohol -7, hydroxyethyl acrylate, acryloyldimethyltaurate copolymer, squalane, poly sorbate esters -60, PEG-20 sorbitan laurate, panthenol, allantoin, methyl p-hydroxybenzoate, diazolidiny1 urea, 3-iodo-2-propynyl-butyl-carbamate, essence.

产品成分：玫瑰精油、玫瑰果油、丁香花油、去离子水、肉豆蔻酸异丙酯、甘油、丙二醇、聚乙二醇-400、环聚二甲基硅氧烷、聚二甲基硅氧烷、聚二甲基硅氧烷醇、聚丙烯酰胺、C13-14 异链烷烃、辛酸/癸酸甘油三酯、月桂醇醚-7、羟乙基丙烯酸酯、丙烯酰二甲基牛磺酸钠聚物、角鲨烷、聚山梨酸酯类-60、PEG-20 失水山梨醇月桂酸酯、泛醇、尿囊素、对羟基苯甲酸甲酯、双咪唑烷基脲、碘代丙炔基丁基甲氨酸酯、香精。

They say hydrogen peroxide or carbamide peroxide may also help.

他们说过氧化氢或过氧化脲也能有一定的帮助。

They say hydrogen peroxide side or carbamide peroxide may also help.

用过氧化氢或过氧化脲对此也有效。

Objective To evaluate the effect of carbamide peroxide bleaching agents of different concentrations and carriers on tooth color.

目的：研究不同增稠载体及浓度的过氧化脲(carbamide peroxide，CP)漂白剂对牙齿颜色的影响。

They say hydrogen paroxide peroxide or carbime paroxide carbamide peroxide may also help.

他们说过氧化氢或过氧化脲可能有作用。

You will convert the carvone to its semicarbazone for use in a polarimetric analysis.

为了作旋光度分析，你将会把香芹酮转变为缩胺基脲。

Because the limonene does not have a carbonyl group, the small amount of it which remainsin the carvone fraction will not form a semicarbazone derivative.

由於柠檬烯没有羧基，留在香芹酮馏份中少量的柠檬烯将不会产生缩胺基脲的衍生物。

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