水溶液

Dimethyl - 4 - hydroxy - 3(2H) furanone has been synthesized by the hydrogenatic coupling of pyruvaldehyde and cyclization under the basis conditions.

以丙酮醛为原料，在乙酸水溶液中用锌粉氢化二聚，然后在碱性溶液中闭环，合成了一种重要的杂环香料呋喃酮，产率达 2 8.6 %。

The results of orthogonal experiment showed the optimum extraction conditions were material with 15-fold ethanol of 75% as solvent was refluxed in water-bath for three times, each for 40 min.

正交试验结果显示最佳提取方法为：采用75%的乙醇水溶液为提取液，1：15的固液比，水浴回流热提取3次，每次40min。

Fire-fighting foam is an aggregate of air-filled bubbles formed from aqueous solutions and has a lower density than that of flammable liquids. It is principally used to form a cohesive floating blanket over flammable and combustible liquids and prevents or extinguishes fire by excluding the air and cooling the fuel. It also prevents from reignition by suppressing formation of flammable vapors. Therefore, Fire-fighting foam can be used as a fire prevention, control, or exposure protection for flammable liquid fire hazards.

消防泡沫是一种填充空气的泡沫水溶液集合体，其密度比易燃性液体低，并可粘著、覆盖於易燃性与可燃性液体表面而达到隔离空气、冷却燃料及防止燃料持续蒸发引燃等功用，所以消防泡沫常使用在易燃性危险液体之预防火灾、制压火势及防阻延烧上。

The apparatus used for the reduction and reoxidation of Fe3O4-Mo, Fe3O4-Al, Fe3O4-Cr, Fe3O4-W and Fe3O4-none samples was a value system of the performance of hydrogen storage with a fixed bed of the samples at the center of a quartz-made tubular reactor.

以金属Mo，Al，Cr，W可溶盐为添加物，通过共沉淀法由FeCl3和（NH4）2Fe（SO4）2·6H2O的水溶液制备了单金属添加的Fe3O4改性储氢材料。

The ultra-fine disperse black ECO was prepared from traditional disperse black ECO by ball milling, reprecipitation and pressure homogenization. The effects of ratio of dyes and milling media, milling time, ratio of dyes and organic assistants, etc on were investigated.

将普通分散染料黑ECO各组分按比例混合后加入复合分散剂及有机助剂，用球磨机高度分散后滴加到复合分散剂的水溶液中，最后经高压均质机均质后得到超细分散染料黑ECO液体染料。

If the base was added again to above solution until pH≥13, the resinoid substance was separated from it.

以分光光度法，于740 nm波长下测定含0.98％正丁醇的0.5％PVA与铜盐组成的(pH=10)不同浓度(5～50 mg CuCl_2·2H_2O/100 ml)的水溶液吸光度，并对CuCl_2·2H_2O摩尔浓度作图，它遵守朗伯—比耳定律。

The said medicine contains rheinic acid and rheinate and is prepared into oral water solution or capsule with daily taken dose not greater than 200mg.

一种治疗糖尿病肾病的药，它含有大黄酸和大黄酸盐。它可以制成水溶液或胶囊口服，日剂量不大于200mg／日。

An amphiphilic graft copolymer was obtained using a macromonomer method and its aggregate behavior and phase structure in aqueous solutions were studied by tensionmetry, polarized micrography, rotation rheometry and small-angle X-ray diffraction.

采用大分子单体法制备接枝型两亲共聚物，通过表面张力仪、偏光显微镜、旋转流变仪和小角X射线衍射研究了两亲共聚物在水溶液中的聚集行为及其相结构。

Methods Samarium nitrate was administrated to mice at different doses (0,5,50,500,2000mg/L) for 90d.The contents of samarium and trace elements in testicle were observed.

110只雄性ICR分为5组，小鼠分别自由饮用0，5，50，500和2 000mg/L的硝酸钐水溶液90d，测定睾丸内钐和微量元素含量的变化。

Sixteen Scenedesmus species or strains have been employed to investigate the maximum capacity of nickel accumulation in 10 mg/L Ni solution. The results showed that the capacity of accumulating Ni from aqueous solution in 16 Scenedesmus species or strains showed the diversity.

对不同Scenedesmus品种的藻细胞从含镍水溶液(10mg/L)中累积金属镍的能力进行了分析，结果表明：藻细胞对镍的生物累积量表现出明显的品种差异性。

This paper demonstrated the impact on the environment today, an important factor is Education.

本文主要展示了当今影响环境的一个重要因素——教育。

Article 16 The power to interpret these Procedures shall remain with the Ministry of Agriculture and CAA.

第十六条本程序由农业部、国家认证认可监督管理委员会负责解释。