稳定性

The stability of alkaline earth sulfides can be improved by two methods, one is by coating with fluoride or oxides, and another is by forming of complex sulfides with Ga.

可通过两种方法改善碱土硫化物的稳定性，其一是通过用氟化物或氧化物的包覆，另一是通过与Ga生成的复合硫化物。

Through adjusting the amount of assistants mentioned above, alkyd emulsions with excellent stability could be obtained.

适当地调整上述助剂的量可以制备出具有优异稳定性的醇酸树脂乳液。

This novel sealant can be painted with oil paints such as alkyd paint and polyurethane paint.

可明显改善油溶性醇酸漆和聚氨酯漆对有机硅密封材料的可涂覆性及储存稳定性。

Combining the performance evaluation (activity, selectivity and stability) and the characterization of the catalysts (XRD, TPD, FTIR and the pore structure measure), it can be concluded that :(1)The activity of modified β is higher than MCM-22, but the selectivity of ethylbenzene is lower about 3% than that of MCM-22;(2)The mounts of diethylbenzene and the other by-products are higher 1.7 times and 1.5 times than these of MCM-22 respectively;(3)The catalytic performance of zeolite mixture is nearly equal to modified β, but the selectivity of ethylbenzene is higher about 0.5% than that of modified β;(4)The catalytic activity of zeolite is mainly correlated with the number of acid sites, strength and distribution, and the distribution of products is determined by the binding energy of ethylbenzene and the pore structure, while the stability of catalyst is affected by the amount of poly-ring aromatic alkylate and the pore structure.

以性能评价和特性表征（XRD、TPD、FTIR和孔结构测定）相结合的方式，对上述三种催化剂性能比较的结果表明：（1）改性的活性明显高于MCM-22，但乙苯选择性却低于MCM-22绝对差约3%；（2）改性(上二乙苯和其他副产物的生成量分别约为MCM-22上对应值的1.7和1.5倍左右；（3）混合型催化剂的性能与改性相仿，但乙苯选择性提高0.5%左右；（4）对乙苯合成，沸石催化剂的活性主要取决于其B酸中心数、酸强度及酸分布，产物分布则取决于催化剂表面的乙苯脱附能垒值和孔道结构，而稠环芳烃的生成量和催化剂孔道结构是影响催化剂稳定性的主要因素。

This paper discusses the blending effect of methanol with straight-run gasoline, alkylate, catalytic cracked gasoline and reformate on octane number, saturated vapor pressure, compatibility and stability of the blended stocks.

本文论述了甲醇与直馏汽油、烷基化油、催化裂化汽油以及催化重整汽油调合时的辛烷值调合效应、饱和蒸气压调合效应，以及调合油的相溶性、稳定性。

The results showed that the catalyst has highly activity and stability in the alkylation of benzene with dodecytene.

研究结果表明负载HPWA的SBA-15催化剂具有较好的催化活性和稳定性。

Next question to be considered is that the stability and reliability of the control system (system of all-weather bad conditions).

接下来所要考虑的问题则是，控制系统的稳定性和可靠性（系统全天候恶劣条件下工作）。

Objective To detect the stability of the mite allergen.

目的检测尘螨变应原的稳定性。

These DNA sequence changes might contribute to the rapid evolution of the newly formed allopolyploid and allow the divergent genomes to act in harmony.

杂种后代DNA序列的这种变化可能有利于新形成异源多倍体小麦的快速进化、遗传协调和遗传稳定性。

Theoretical analysis and finite element analysis were used to study variable cross section drilling shaft lining's vertical stability in thick alluvium.

采用理论分析和有限元分析2种方法深入研究了变断面深厚表土钻井井壁竖向稳定性问题。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。