歧化

Hybrid zones are regions where diverged populations meet and interbreed.

杂交区是歧化了的群体接触和杂交的区域。

It seems that intricate steric or electronic demand is required for an intramolecular metathesis to take place.

会产生这样的结果主要推测与立体效应和电子效应有关，进而产生分子内的歧化反应。

The Company produced for each grade polyester molecular structure, molecular weight, and the disproportion of the response of isocyanate and other aspects of performance for the full study, various brands of products have corresponding polyester counterparts to ensure that the products are Excellent physical and chemical properties, while in the production process are of excellent performance.

本公司生产的每牌号聚酯分子结构，分子量，歧化度以及与异氰酸酯的反应性能性等方面都进行了充分的研究，各类制品都有相应牌号的聚酯对应，以保证制品有优异的物理及化学性能，同时在生产过程中有优异工艺性能。

Propylene production methods including olefin metathesis and catalytic cracking were introduced.

介绍了烯烃经歧化反应和催化裂解生产丙烯的方法，列举了国内外各大化工企业在该领域的研究及应用状况。

In the striatum and the midbrain, the activity of total SOD increased with time.

鼠脑的总超氧物歧化脢活性和过氧化氢脢活性增加的时间先后不同。

We believe that in CO hydrogenation reaction, the scission of C-O bond is via the carbonyl hydride-multihydrogen carbonyl hydride.

与CO加氢反应和CO歧化的吸附态研究结果相关联，作者认为Rh+Co/Al2O3上CO加氢生成CH4是经由羰基氢化物-多氢羰基氢化物途径。

By contrast,the activities of total SOD decreased in the cortex,subcortex, corpus striatum,liver,and heart of rats after the onset of heatstroke.

另一方面，实验发现在热中风的起始点后10分钟，脑中皮质区、次皮质区、纹状体区及肝和心之总超氧化物歧化■的活性减少。

The Hammett indicator, TPD and IR methods are used to study the relation bet- ween the surface acidic properties of a P-La modified ZSM-5 zeolite catalyst and its toluol disproportion catalytic properties.

本文用Hammett指示剂法，程序升温脱附法和红外光谱法考察了磷和磷一改性ZSM－5沸石催化剂表面酸性变化对甲苯歧化催化剂性能影响，认为磷酸与沸石的直接作用，使沸石的强酸中心消失。

This paper synthesizes the Cu(superscript 2+) schiff base complex of disproportionated rosin amine, and catalyzes urushiol oxypolymerization to polymer.

研究了歧化松香胺席夫碱－铜配合物的合成及其对漆酚氧化聚合反应的催化性能。

Rational reaction condition is that ratio of the Cu(superscript 2+) schiff base complex of disproportionated rosin amine is 3%, urushiol concentration is 68.8 g/L, the system of reaction reacts 36 h at 30℃ in alcohol dissolvent.

结果表明，氧化聚合反应的理想条件是以乙醇为溶剂，加入3%歧化松香胺席夫碱－铜配合物催化剂，漆酚浓度为0.0688g/ml，在30℃下反应36h后，漆酚聚合物的沉淀得率为51.3%。

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