水醇的

The results show that potassium dodecatungstocobaltate trihydrate (K5CoW12O403H2O) is a good water-carrying agent for the reaction between cyclohexanone and 1, 2-propylene ketal.

系统考察了酮醇物质的量比、催化剂质量、带水剂体积、反应时间和催化剂重复使用性等因素对产品收率的影响。

Adopt poaching and alcohol sinking to get coarse polysaccharide, then take MCP, MCP-1 and MCP-2 for studing in antioxidation activities. They have strong ability for scavenging free radical only in DPPH system and oxidation system of linolic acid induced by alkane radical, but negatively in hydroxyl system and in super-oxygen anions system. And MCP-2 is better than MCP-1, so we choose enzymolysis method to remove protein.

采用水煮醇沉工艺提取粗多糖，然后对MCP、MCP-1和MCP-2进行抗氧化活性试验，三者在DPPH体系和烷基自由基引发的亚油酸氧化体系中具有明显的清除自由基能力，在羟基自由基体系和超氧阴离子自由基体系中则呈现负清除能力，其中MCP-2要优于MCP-1，因此选用酶解法除蛋白。

The reaction of esterase isozyme, glycogen and total protein of snails to the extracts of Nerium indicum Mill, Pterocarya stenoptera DC and Rumex japonicum Houtt was studied.

研究了夹竹桃、枫杨和羊蹄灭螺活性较强的正丁醇提取物和水提物对钉螺酯酶同工酶、糖原和总蛋白的生理生化影响。

A new fluorescence quenched method has been found for determination of trace of gold based on the formation of nonfluorescent ternary complex Au- TBT -APDC.The composition ratio of Au to ligandi is 1:2:2.Under the optimum conditions,the linear range of the calibration curve is from 0 to 160ng Au/ml.

本文研究了在聚乙烯醇存在下，金与曙红、吡咯啶二硫代氨基甲酸形成三元络合物的合宜条件，并据此建立了水相荧光熄灭测定痕量金的新方法。

New method named GC-K3 group contribution method for the esxtimation of the octanol-water of oxygenous compounds is presented.

提出了估算含氧化合物的正辛醇/水分配系数的基团贡献法———GC-K3基团贡献法。

A water or and alcoholic extract of rice polishings produced dramatic cures in polyneuritic fowls.

米糖的水浸提物或醇浸提物对患多发性神经炎的鸡产生奇迹般的疗效。

A new thermographic material was studied,in which hydrophilic polyvinyl alcohol was used as a binder, nickel stearate was used as a main material and pyrogallic acid was used as a developer.

本文对以水溶性聚乙烯醇为粘合剂，硬脂酸镍(NiSt2)为主要原料，焦性没食子酸为显影剂的一种新型热成像材料的研究。

Then with V∶V=11 9∶1 0,and by bubbling of air at 65-70 ℃ for 5-8 h,pyruvaldehyde was produced in 59 6% yield.

丙酮醛的总收率达 37 8%。n∶n∶n(1，2 丙二醇)=1 0∶4 0∶(1 5～ 2 5 )，以水为溶剂，在 6 0～ 70℃间歇通入氮气 1 5h ，边加原料边蒸馏，制得产率为5 0 %的丙酮醛。

Polysaccharide was isolated and purified from Chinese medicinal herb Ramulus mori, and determination method for Ramulus mori polysaccharide was developed in this study. Carbon clearance test and dinitrylfluorobenzene-induced delayed type hypersensitivity test were used to evaluate effects of RMPS on immune responses of mice treated with dexamethasone.

采用水提醇沉法从中药材桑枝中分离纯化多糖，并建立桑枝多糖的含量测定方法；采用碳粒廓清法和二硝基氟苯诱导小鼠迟发型变态反应试验法，观察桑枝多糖对地塞米松所致免疫低下模型小鼠免疫功能的影响。

Methods With the extraction yield of volatile oils, contents of evodiamine and rutaecarpine metered by HPLC as indexes, the extraction efficiency of the above-mentioned combined extraction method was evaluated.

以挥发油得率、吴茱萸碱和吴茱萸次碱保留率及药材中生物碱和水溶性成分的HPLC图谱为指标，考察水蒸气蒸馏-醇提过大孔树脂柱联用工艺对保留吴茱萸有效成分的影响。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐