相关例句

• The reaction of chain scission is first-order reaction.(白油的断链为一级反应。)
• The radiation effect on poly (methyl methacrylate) with different tacticities was studied. It was proposed that chain scission process was in a kinetic equilibrium between scission and recombination.(本文研究了三种不同空间立构聚甲基丙烯酸甲酯的辐射效应，提出裂解过程是一种裂解与重合的动态平衡过程。)
• PP will degrade due to heat during processing, resulting in chain scission of macromolecule, reduction in molecular weight and rise in MI.(聚丙烯在加工时受热将发生大分子断链降解，致使分子量减小，熔体指数上升。)
• The dependence of chain scission and racemization on temperature results from molecular motion, "cage effect" and steric hindrance during recombination.(分子量降低和消旋作用对温度的依赖性，是由于分子运动和笼罩效应以及重合的空间位阻效应所致。)
• The invention relates to a method for preparing low-molecular vegetable gum through chain scission of macromolecular vegetable gum by a physical or chemical method.(本发明涉及通过利用物理或化学的方法，使高分子的植物胶断链而成为低分子植物胶的制备方法。)
• The third part is the education of children returning from chain scission problem.(第三部分主要研究返乡流动儿童的教育断链问题。)
• DNA strand scission and topology changes are catalyzed by DNA topoisomerases.(DNA拓扑异构酶与断开dna链和改变其拓扑结构有关。)
• In the mean time, the oxidation of the material will cause chain scission.(而材料在氧化的同时，会使分子产生断链。)