水溶液

Experimental results showed that the hydrogenation degree can be enhanced significantly by the addition of triphenylphosphine. When the molar ratio of TPP, TPPTS and Ru is 2:5:1, 89% hydrogenation degree can be achieved after 12 h under reaction conditions of 5.0 MPa and 150~C.

考察了溶剂种类、水溶液的pH值、添加助剂三乙胺、水／有机两相体积、底物浓度等对对-氯硝基苯转化率和生成对-氯苯胺选择性的影响，并在90℃、4.0MPa、反应时间为6h的条件下，进行了催化剂的循环实验。

Firstly, the homopolymerization of acrylamide was carried out in aqueous phase by reversible addition-fragmentation chain transfer radical polymerization using a trithiocarbonate as a chain transfer agent.

整个过程分为两步，首先在水溶液中，通过RAFT控制得到亲水性单体丙烯酰胺的均聚物；然后以得到的均聚物作为水溶性的大分子链转移剂，在水相中条件下参与亲油性单体苯乙烯无皂乳液聚合。

Monodispersed tungstic acid nanoparticles with an average diameter of 20 nm were prepared by a ultra-violet light irradiation of oxotungsten-citrate complex aqueous solution.

通过紫外光照射柠檬酸钨氧配合物水溶液，制备了平均粒径约为20nm的单分散钨酸纳米颗粒。

The thermally cured Etch-resist ink (2) was then removed from the unetched areas of copper by immersing the film in an aqueous solution of 5% by weight caustic at a temperature of 50° C.

的热固化刻蚀抵抗油墨（2）然后从铜的未腐蚀× 100区除名的沉浸在了5％水溶液的电影，由重量烧碱为50 ° C的温度由此产生的FR4电路板蚀刻水冲洗和干燥的空气在25 ° C

It is concluded that the oxidative unhairing method using chlorine dioxide solution is feasible and it has a lot of advantages which cannot be replaced by other unhairing methods.

研究及实践结果表明：二氧化氯水溶液氧化脱毛法可行，并且具备其它脱毛方法不可替代的优点。

The method includes the following steps: getting specific amount of knitted or unknitted natural fiber and dipping the natural fiber in the aqueous solution of silane coupling agent for 1-100min, taking out and drying the natural fiber, thus producing natural fiber with modified surface; then pressing the polylactic acid into sheet in a plate vulcanization machine; disposing 2-10 polylactic acid sheets into a die and arranging one modified natural fiber sheet between every two polylactic acid sheets; pressing and molding the sheets; in this way totally biologically degradable polylactic acid composite material can be made.

该方法为：先取一定量的经过编织或未编织天然纤维，将其浸渍在偶联剂水溶液中1～100分钟后取出，经干燥后得到表面改性的天然纤维。然后，将聚乳酸在平板硫化机中压制成薄板；将2～10片聚乳酸薄板放在模具中，且每2片之间放置1片改性的天然纤维，然后模压成型，得到可完全生物降解聚乳酸复合材料。

At 25℃,in 30w/o KOH aqueous,when current density is 2000A/m 2,the evolution oxygen overpotential of the oxidized Ni anode decreases 260mV relative to unoxidized Ni anode.

常温下，电流密度2000A／m2电解30％KOH水溶液时，脉冲电流氧化的Ni阳极析O2超电势比普通Ni阳极下降260mV。

Objective To detect the virucidal efficacy of cross linked starch iodine and its influence factors in solution and to observe the morphological changes of CSI after disinfection.

目的 检测交联淀粉碘对水溶液中病毒的灭活效果及影响因素，并观察消毒前后CSI的形态变化。

Amounts of hydroxyl groups and specific surface areas of silica xerogel are higher, therefore it has more adsorption activated positions.

第四，通过锆在水溶液中的存在特性和SiO〓干凝胶表面特性的分析，研究了SiO〓干凝胶对锆的吸附机理。

The micro-morphology of the initiation zone of SCC of Ti-5A1-2.5Sn alloy in 3.5% NaCl solution has been inspected by OM and SEM.A study of the SCC crack's details by OM,TEM,X-ray diffractometer and ion microanaly- zer has also been made.

本文用金相显微镜和扫描电镜对 Ti-5Al-2.5Sn 合金在近中性3.5%NaCl 水溶液中 SCC 裂纹形核带的微观形貌进行了观察。

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。