查询词典 acetone

Using citral and acetone as starting materials, the aldolcondensation was carried out, and then the final product wasobtained by distillation under vacuum.

以柠檬醛和丙酮为起始原料进行醇醛缩合反应，经减压蒸馏得到最终产物。

The molecular weight dependence of the distribfition of polymer molecules between the coacervate and the dilute phases on the phase separation of polymethylmethacrylate-acetone-methanol system has been proved to follow the relation first derived by Flory for binary systems: f"_j/f′_j = Qe~_j where f"_j and f′_j are the weight fractions of the polymer molecules of molecular weight M_j in the coacervate and in the dilute phases respectively, while Q and σ are parameters.

1。聚甲基丙烯酸甲酯-丙酮-甲醇体系的两次分相实验用θ-溶剂中的沉降速度法测定分相前试样和浓相的分子量分布曲线，得到高分子在浓稀相重量分配的分子量依赖关系 f_j=Qe~证实Flory的溶度函数形式与实际相符，并适用于三元体系的相分离，但Q值与两相体积比R值并不相同。 2。再分级使级分的分子量分布宽度随再分级次数的增加而减小，通常认为到第三次再分级其效果已不显著并不确实。

Colorlessness to light yellow transparent oil liquid, especial smell, Easy to dissolve in alcohol, ether, acetone, It'll be gelatin when meeting with water.

本品为无色至淡黄色油状透明液体，具有特殊的气味。

Acetone extract of E.hirta may be toxic to spores of C.musaram. Ethyl acetate extrate of E.hirta may have inhibiting effects on conidium germination and mycelium growth of C.musaram.

大飞扬的丙酮提取物对芭蕉炭疽菌孢子可能具有毒害作用，乙酸乙酯提取物使芭蕉炭疽菌和链格孢菌的孢子芽管生长不正常。

Acetone extractive of Euphorbia hirta may be have viricidal effect on spores of C. higginsianum. Ethyl acetate extractive of E. hirta may be have inhibited effects on conidium germination or growth of hypha of C. higginsianum.

大飞扬草的丙酮提取物对炭疽菌孢子可能具有毒害作用，乙酸乙酯提取物使炭疽菌和链格孢菌孢子芽管生长不正常，且对其菌丝生长具有抑制作用。

Direct oxidation of benzene to phenol, in contrast with the Hock reaction, has the merit of not only utilising nitrous oxide as an oxidising agent but also the absence of acetone as a coproduct and simpler separation processes.

直接氧化苯酚，反观与典当反应不仅具有优异的氧化剂使用笑气作为而且由于缺乏丙酮一个简单的副产品和分离工序。

Smokeless powder又称为cordite【A smokeless explosive powder consisting of nitrocellulose, nitroglycerin, and petrolatum that has been dissolved in acetone, dried, and extruded in cords.

无烟线状火药，一种无烟炸药，由硝化纤维素、硝化甘油和凡士林组成，在丙酮中溶解，风干并压成绳状），属于double base powder硝化甘油与硝化纤维双基火药），是跟黑火药完全不同的东西。

MethodsSmear 0.25% croton oil＼acetone ag on the back of kunming mice,and observe the growth condition of papilloma,then record the quantity of tumor-bearing mice and the quantity of tumor in each mice.

方法在脱去毛发的昆明鼠背部涂抹DMBA丙酮液以及巴豆油丙酮液，观察动物背部乳头状瘤发生情况，记录荷瘤小鼠数及各鼠荷瘤数。

Methodssmear 0.25% croton oil＼acetone ag on the back of kunming mice,and observe the growth condition of papilloma,then record the quantity of tumor-bearing mice and the quantity of tumor in each mice.results20-ginsenoside rh2 prolonged the incubation of tumor, reduced the quantity of tumor-bearing mice and decreased the amount of tumor in each mice.conclusion20ginsenoside rh2 has obvious anti-papilloma effect on the mice skin.

结果20-人参皂苷rh2对小鼠皮肤乳头状瘤有明显的抑制作用，可使肿瘤发生潜伏期延长，使化学致癌物诱发的荷瘤动物数明显减少，每鼠荷瘤数显著下降。结论20r 人参皂苷rh2在预防癌症的发生和发展方面有重要的作用，也是很有前景的新型抗癌药。

It prepares to introduce the foreign advanced production technology for phenol-acetone by Cumene Process.

建设内容：建设苯酚厂房及生产线，拟引进国外先进的异丙苯法苯酚丙酮生产技术。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。