查询词典 phenol

The effects of ratio of formaldehyde to phenol r(subscript F/P, ratio of NaOH to phenol r(subscript NaOH/P and resinification temperature on chemical properties of liquefied wood resins were investigated.

考察不同甲醛与苯酚物质的量之比值r(下标 F/P、氢氧化钠与苯酚物质的量之比值r(下标 NaOH/P和树脂化温度对树脂理化性能的影响。

Several methods of plant tissue protein extraction (TCA-acetone precipitation method, phenol method, urea method, Zhou Han-tao described method, and phenol method improved by the authors) were applied to extract total protein from Rhizophora stylosa root, and then after SDS-PAGE, a subsequent 2-DE analysis was carried out with the optimized conditions for 2-DE .

分别采用TCA-丙酮沉淀法、酚法、尿素法、周涵韬法和笔者建立的酚改良法，提取红海榄根部总蛋白质，并进行了SDS-PAGE分析和双向电泳体系的优化。

The preparation of avermyctin emulsions in water was achieved by mixing the surfactants polyoxyethylene (10) octylphenyl ether (OP10), polyoxyethylene styrenated phenol ether (602), and polyoxyethylene (40) castor oil ether (EL-40) with polyoxyethylene (20) castor oil ether (EL-20), separatively. Emulsion stability was investigated by analyzing the hydrophile-lipophile balance, critical micelle concentration, and surface tension. Then, the surfactants of polyoxyethylene polyoxypropylene styrenated phenol ether (1601), block copolymer (L64), and octyl phenyl polyoxyethylene phosphonate were added to the emulsion made by blending EL-40 and EL-20, separatively. The stability of the emulsions was investigated further and discussed in terms of droplet size, surface tension, and zeta potential.

首先将辛基酚聚氧乙烯醚(OP10)、苯乙烯基酚聚氧乙烯醚(602)和蓖麻油聚氧乙烯(40)醚(EL-40)分别与蓖麻油聚氧乙烯(20)醚(EL-20)复配制备阿维菌素水乳剂，从亲水亲油平衡值、临界胶束浓度、表面张力等方面分析了二元表面活性剂复配对乳液稳定性的影响；其次，在EL-40与EL-20复配基础上，将苯乙烯基酚聚氧乙烯聚氧丙烯醚(1601)，嵌段共聚物(L64)和辛基酚聚氧乙烯醚磷酸酯分别添加到乳液中，从粒径、表面张力和zeta电势等方面考察三元表面活性剂复配对乳液稳定性的影响。

In application of modified phenol-formaldehyde resin in OCC pulp, firstly the application effictiveness of phenol-formaldehyde resin modified by triethylamine and diethylene triamine in OCC pulp was researched, and the optimum application effictiveness was gotten through mon- factor trial.

通过对改性酚醛树脂在OCC废纸浆中的应用研究，考察了二乙烯三胺和三乙胺改性酚醛树脂在OCC废纸浆中的应用效果，并通过单因素实验得到了改性酚醛树脂的最佳应用效果。

It has shown that the optimum condition to modify phenol-formaldehyde resin were phenol﹕formaldehyde﹕diethylene triamine 1﹕0.8﹕0.015, reaction temperature 95～105℃and reaction time 2h, when using diethylene triamine as modifying agent.

实验结果表明，以二乙烯三胺为改性剂时，制备改性酚醛树脂的最佳实验条件是：苯酚﹕甲醛﹕二乙烯三胺为1﹕0.8﹕0.015；反应的最高温度为95～105℃；反应时间2h。

Considering the strength enhancing efficiency of phenol-formaldehyde resin modified by triethylamine and diethylene triamine in OCC pulp, the efficiency of phenol-formaldehyde resin modified by diethylene triamine was better than triethylamine.

综合考察二乙烯三胺和三乙胺改性的酚醛树脂的增强作用，二乙烯三胺作为改性剂时改性的酚醛树脂要优于三乙胺改性的酚醛树脂。

The yield was 47.3%. A series of21 azo-1,3,4-thiadiazole compounds were synthesized by diazotizing of2-amino-5-alkyl-1,3,4-thiadiazole with nitrosylsulfuric acid, then couplingwith phenol, substituted phenol or naphthol. The yields were 19.6～58.8%.16 of them were new compounds.

制得的2-氨基-5-烃基-1，3，4-噻二唑用亚硝酰硫酸进行重氮化，再与苯酚、取代苯酚或萘酚发生偶合反应合成了21个偶氮-1，3，4-噻二唑类化合物，其中16个为新化合物，收率为19.6～58.8％。

The research suggested that American white oak is the best choice for the production of grape wine with strong oak aroma and European oak is the best choice for the production of grape wine with harmonious oak aroma, fruit aroma and wine aroma; air drying process of barrel plates would influence the content of total phenol, tannin and volatile substances including vanillin and MOL; and baking intensity will change original content of chemical compositions in oak and make oak barrel possess different aroma characteristics and phenol substance content.

研究表明，酿制橡木香较浓郁的葡萄酒选用美国白栎较好，酿造像木香、果香、酒香协调的葡萄酒则选择欧洲橡木较适宜；板材风干过程对橡木板材中的总酚、单宁含量及挥发性香气物质香兰素和橡木内酯的含量均有影响；烘烤强度可改变橡木木材原有的化学组分含量，使橡木桶具有不同的呈香特性和酚类物质含量。

The research suggested that American white oak is the best choice for the production of grape wine with strong oak aroma and European oak is the best choice for the production of grape wine with harmonious oak aroma, fruit aroma and wine aroma; air drying process of barrel plates would influence the content of total phenol, tannin and volatile substances including vanillin and MOL; and baking intensity will change original content of chemical compositions in oak and make oak barrel possess different aroma characteristics and phenol substance content.

研究表明，酿制橡木香较浓郁的葡萄酒选用美国白栎较好，酿造橡木香、果香、酒香协调的葡萄酒则选择欧洲橡木较适宜；板材风干过程对橡木板材中的总酚、单宁含量及挥发性香气物质香兰素和橡木内酯的含量均有影响；烘烤强度可改变橡木木材原有的化学组分含量，使橡木桶具有不同的呈香特性和酚类物质含量。

With 4 Xiu Shuang phenol - A and solid smooth air is raw material, dissolve it in 1 in, 2- 2 chlorine ethane solvents, slow drop adds 3 Yi Ans to carry out solution get together , with 3 Xiu benzene phenol does end dose, thick product sinks by industrial alcohol Xi after, take out to strain , wash is dry , grind white powder form flame retardant assemble carbon sour ester product.

以四溴双酚-A、固体光气为原料，将之溶解在1，2-二氯乙烷溶剂中，缓慢滴加三乙胺进行溶液聚合，以三溴苯酚做封端剂，粗产品经工业酒精沉析后，抽滤，洗涤，干燥，研磨得白色粉末状阻燃聚碳酸酯产品。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。