选择性

Flotation reagent ; desulphuration and deashing ; selectivity ; coal pyrite

浮选药剂；脱硫降灰；选择性；煤系黄铁矿

The successive stability constants which are obtained by non-linear least-squares methord fitting Bjerrum formula. In three- system ,the results from Scatchard plots indicate that there exists two strong binding site of Mn and one strong binding site of Zn,there are same results compareing with two -system ,but some more weak binding sites are different from the different addition sequence ,show that there are not common strong binding site of Mn,Zn in HSA or BSA .Strong binding sites have electiveness and unfalteringness ,weak binding sites exists irreversibility.

用非线性最小二乘法拟合Bjerrum方程，计算了同时竞争体系的逐级稳定常数；Scatchard图分析表明，三元体系中，Mn和Zn与血清白蛋白结强合部位数分别为2和1，与二元体系相比，保持不变，弱结合部位数随加入顺序的不同而不同，但都有所增加，竞争结果说明了Mn和Zn与血清白蛋白结合没有共同的强结合部位，强结合部位具有专一性，选择性，而弱结合部位具有不可逆性。

The fourth part discusses the necessity and feasibility of the transition from the"selective"hortation and assit system to the"prevalent"rural social pension system.

第四部分分析了由&选择性&的计划生育家庭社会养老保险制度向&普惠性&的农村社会养老保险制度过渡的必要性和可行性。

Facing this situation, according to the hortation and assit system for planned parenthood being taking into effect in the rural area of our country, this thesis analyzes the deficiency of the present rural social pension system and discusses countermeasures and approaches about how to combine these two systems and improve the rural social pension system based on the analysis of necessity and feasibility of transition from"selective"hortation and assit system to"prevalent"rural social pension system. This thesis can be separated into five parts.

针对这种现状，本文从分析我国农村社会养老保险制度存在的问题与不足入手，结合当前我国在农村推行的农村部分计划生育家庭奖励扶助养老制度，从理论和现实的角度分析将奖励扶助养老制度与农村社会养老保险制度相结合建立农村计划生育家庭养老保险制度，以及将这种&选择性&的社会养老保险制度向&普惠性&的农村社会养老保险制度过渡的必要性和可行性，在此基础上进一步探讨了如何将两种制度有效结合，以及改进和完善我国农村社会养老保险制度的对策和途径。

Ionic liquid ; selectivity ; bromation reaction ; methylic imidzaole

离子液体；选择性；溴化反应；甲基咪唑

Some university students exist to varying degrees political beliefs confused, ideals and beliefs fuzzed, values distorted, integrity weak, social responsibility awareness lacked, spirit of arduous struggle diluted, the concept of unity poor, psychological quality poor.

在此背景下，大学生思想活动的独立性、选择性、多变性和差异性日益增强，一些大学生不同程度地存在政治信仰迷茫、理想信念模糊、价值取向扭曲、诚信意识淡薄、社会责任感缺乏、艰苦奋斗精神淡化、团结协作观念较差、心理素质欠佳等问题。

On the basis of consideration of various factors whichinfluence the process benefit such as the catalytic activity, the selectivity toward C2 oxygenates, Rh efficiency, and the operation cost, the favorable reaction temperature should be in the rangeof 583-593 K, and the optimized Rh loading be 1 ~2 wt.%.

综合考虑催化剂的活性、选择性、催化剂的Rh效率、工业消耗以及对设备的要求，认为，反应温度为583～593 K，催化剂Rh担载量为1～2wt。

Defected ground structure ; defect parameters ; lowpass filter ; sharpness factor ; selectivity

缺陷地结构；缺陷参数；低通滤波器；陡峭因子；选择性

With high efficiency, high selectivity, security and environmental friendship, the biocatalysis possesses significant advantages over chemical catalysis in organic synthesis, especially in the asymmetric synthesis of the enantiomerically pure compounds and in the resolution of racemates.

生物催化的高效性、选择性、安全性以及环境友好等优点，使其在一些化学合成领域，特别是在对映体纯的手性化合物的合成和消旋体拆分等方面，具有化学催化不可比拟的优势。

Oriental armyworm; milk vetch; rape; nectar; nutritional effect ; volatiles; selectivity

紫云英；油菜；粘虫蛾；花蜜；营养效应；挥发物；选择性

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。