水溶液

Skin contacted by HF, vapor , or aqueous solution rapidly produces an erythematous area, often with a white or gray color at the surface caused by coagulation of tissue.

接触HF、蒸气或水溶液的皮肤会迅速产生一块变红的区域，通常在表面带有组织凝结造成的白色或灰色。

In the presence of alkalinity and tetraethyl ammonium bromide, 2,4-dihydroxy benzophenone reacts with allyl glycidyl ether to form an ethylenic derivative of benzophenone, 2-hydroxy-4-(β-hydroxy-γ-allyloxy) propyloxy benzophenone, which can further undergo hydrosilylation with polyhydromethylsiloxane.

在相转移催化剂四乙基溴化按作用下，利用2，4-二羟基二苯甲酮与烯丙基缩水甘油醚在碱性水溶液中的开环加成反应，合成了中间体4-丙氧基－2-羟基二苯甲酮，将其进一步与聚甲基氢硅氧烷进行硅氢化加成反应。

Objective: To research the effect of Eucommia ulmoides extract solution on mice subchronic toxicity, to provide basis for clinical use.

目的：研究不同剂量的杜仲提取物水溶液对小鼠亚慢性毒性作用，为临床应用提供依据。

ObjectiveTo research the effect of Eucommia ulmoides extract solution on mice subchronic toxicity,to provide basis for clinical use.

目的研究不同剂量的杜仲提取物水溶液对小鼠亚慢性毒性作用，为临床应用提供依据。

The powder of eucommia was extracted twice with 60% ethanol-water solution at 60℃, for 60 min each time.

结果表明：杜仲粉用体积分数为60%的乙醇水溶液，60℃，提取2次，每次1 h，PDG提取率可达90%以上。

Clean facepiece (excluding filters and cartridges), with 3M Respirator Wipes 504 or 105 or by immersing in a warm, mild pH neutral (pH 6-8) detergent cleaning solution. The water temperature should not to exceed 120°F (49°C). Scrub with a soft brush until clean.

清洗呼吸器面罩，使用3 M 504或3M105呼吸器面罩擦拭纸巾，或将面罩浸泡在温的pH值呈中性（pH 6-8）的清洁剂水溶液中，水温不应高于49°C (120°F)，用软毛刷清洗面罩直至干净。

Aim:To observe the therapeutic effects of liposomeencapsulated adriamycinadministered into the hepatic artery for hepatoma in rats fand compare it with that of adriamycin solution and ADM plus blank liposome.

目的：观察阿霉素脂质体经肝动脉给药对大鼠肝肿瘤的疗效，并与阿霉素水溶液及阿霉素加空白脂质体相比较。

In this paper,the electrochemical reduction of CO2 by various metal electrodes in aqueous solution,organic solvent and molten salt media is reviewed,which includes reaction activity and mechanism of every kind of metal electrodes. The effect of electrode,temperature,pressure,electrode potential and electrolyte on the selective and Faradaic e...

综述了金属电极在水溶液、有机溶剂以及熔融体中电还原CO2的研究现况，包括各类金属在电还原CO2过程中所表现出的反应活性以及生成相应产物的反应机理；介绍了电极、温度、压力、电极电位和电解质等因素对金属电极电还原选择性及法拉第电流效率的影响；展望了CO2电还原的未来研究方向及应用前景。

A SPE procedure was suggested for extracting and concentrating fisetin by using different volume fractions of ethanol in aqueous solution as the loading conditions.

分别以中药黄栌的主要成分非瑟酮为印迹分子、丙烯酰胺为功能单体及乙二醇二甲基丙烯酸酯为交联剂，通过封管聚合法合成了分子印迹聚合物；将其装于自制的固相萃取柱中，研究了以不同体积比的乙醇-水溶液为溶剂时非瑟酮在柱上的保留行为；通过优化清洗及洗脱条件，使非瑟酮与它的结构相似物槲皮素在柱上得到了很好的分离。

We have synthesized fourdioxotetraamine ligand appended with fluorenyl group and their transition metal complexes.The crystal structures of the complexes were determined by x-ray diffraction. Stability,electrochemistry and switch properties in aqueous solution was studied by pH-potentiometricand fluorimetric titration as well as cyclic voltammetry.

合成了带侧链荧光基团—芴的二氧四胺配体及其过渡金属配合物，测定了过渡金属配合物的晶体结构，研究了他们在水溶液中的稳定性、电化学性质和荧光开关性质。

This paper analyzes the compound attractor structure of a new three-dimensional autonomous chaotic system.

分析了一种新的三维自治混沌系统吸引子的复合结构。

ON shut rivals out of their transmission systems and shy away from reinvesting their profits in network improvements.

ON将竞争者挡在了其输送体系之后，并不愿将其收益再投资于网络改建工作。