1) coincidence degree
叠合度
1.
By the continuation theorem of coincidence degree theory,a set of easily verifiable criteria are derived for the existence of the positive periodic solution.
主要研究了具有时滞的2-种群竞争年龄结构模型的周期解,利用叠合度理论的连续定理,得到了正周期解存在性的判别准则。
2.
Methods\ By using a continuation theorem based on coincidence degree theory.
方法 利用叠合度理论中的延拓定理 。
3.
A set of easily verifiable sufficient conditions are derived for the global existence of periodic solutions with strictly positive components by using the method of coincidence degree.
运用叠合度的方法得到了正周期解的全局存在性的充分条件。
2) strength / composite beams
强度/叠合梁
3) coincidence degree theorem
叠合度定理
1.
In this paper,one host-macroparasite model with impulse and delay is investigated,by using the Fredholm mapping and coincidence degree theorem,the existence of positive periodic solution is obtained.
文章主要研究了一类带脉冲和时滞的宿主—大寄生物模型,利用Fredholm映射以及叠合度定理,获得了该生物模型正周期解的存在性。
4) porosity overlay
孔隙度叠合图
5) dimerization
[,daiməri'zeiʃən]
叠合
1.
By analyzing and characterizing the deactivated catalyst,it was found that the contaminations of the dimerization-etherification catalyst from metal cations and basic nitrates were the main factor of the catalyst deactivation.
通过对失活催化剂的分析表征确定金属离子和碱性氮化物的污染是引起叠合醚化催化剂失活的重要原因。
2.
This route is carried out in two steps; selective dimerization of isobutene (from C4 steams) to form di-isobutene, and hydrogenation to form saturated product isooctane.
异丁烯叠合-加氢可获得高辛烷值的异辛烷,是生产烷基化油的新途径,被称为间接烷基化技术。
6) polymerization
[英][,pɔlimərai'zeiʃən] [美][,pɑlɪməraɪ'zeʃən]
叠合
1.
The olefin-reducing performance of the developed catalyst is investigated on a continuous-flow fixed-bed reactor with FCC naphtha as feedstock, and the impact of process conditions on olefin reduction by polymerization is studied.
在实验室小型连续流动式固定床反应器上,以催化裂化汽油为原料,考察了所研制催化剂的降烯烃性能,探讨了工艺条件对叠合降烯烃的影响,结果表明,M-A/γ-Al2O3催化剂具有很高的活性、稳定性和选择性。
2.
This paper presents a combined technology for mixed C 4 olefin polymerization via prereactor and catalytic distillation reactor.
介绍了一种混合碳四烯烃叠合利用的预反和催化蒸馏组合技术,该技术以酸性阳离子交换树脂为催化剂,可以将混合碳四烯烃中的95%以上的异丁烯叠合反应生成二异丁烯和异辛烯,且部分正丁烯也参与二聚或共聚。
补充资料：合度
合乎尺度；合适；适宜。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条