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- As a result,the high-octane gasoline is obtained from C9 through two stage polymerization in the presence of metal halide as catalyst.The process is mild condition and convenient to operate. 实验结果表明,C9馏分在金属卤化物存在下通过两段聚合制备高辛烷值汽油组分,聚合条件温和,操作简单,可得到无色无怪味的高辛烷值汽油组分。
- Acrylate, DDBSA and DMF were used to react under a two stage. 丙烯酸盐，DDBSA和二甲基甲酰胺之间的反应常常分二个阶段。
- A two stage growth process for metastable pits was suggested. 提出了一个亚稳态蚀孔生长的两阶段模型。
- The Bretton woods system broke down in two stages. 布雷顿森林体系的垮台分为两个阶段。
- The newly developed cooling system has a high efficient two stage radiator. 最新被开发的冷却系统拥有高效率的两阶段冷却。
- The surgery consists of two stages. 手术由两个阶段组成。
- The evacuation was to be carried out in two stages. 整个移民安置计划分两个价段进行。
- The plant will be commissioned in two stages. 开机调试的过程分两个阶段进行。
- This exercise is divided into two stages. 这项工作分两阶段进行。
- The troops will be pulled out in two stages. 撤军工作分两步进行。
- The treatment included two stages of associative polymer solutions and 20 wt% HCl with additives. 处理过程包括两个阶段：复配的聚合物溶液和含添加剂的20%25（质量百分比）盐酸。
- These two stages witnessed supernormal growth of the rural economy. 在这两个阶段农村经济呈超常规增长。
- Two stages passed, briefness quantify and accurate quantify. 它经历了两个阶段,简单定量阶段和精确定量阶段。
- Bilateral Total Hip or Knee Arthroplasty - One Stage Versus Two Stage Procedure. 双膝或双髋关节一期置换与二期置换对比研究。
- Two stage gear deceleration, Duo-cone floating seal, combined carrier roller to facilitate service. 两级直齿轮减速,浮动油封密封,链轮采用组合式,便于维修。
- During the first two stages, USA and USSR played an important role. 从以战建国到和平建国的转变中,美国、联的作用不可低估。
- Two stage gear deceleration ,Duo-cone floating seal ,combined carrier roller to facilitate service. 两级直齿轮减速，浮动油封密封，链轮采用组合式，便于维修。
- An organization implements records management in two stages. 组织分两个阶段实施记录管理。
- The viewer uses a viewer sorter to sort its elements in two stages. 查看器使用查看器排序程序以便采取两个步骤对它的元素排序。
- A polymer of two or more different monomers. 共聚物一种由两种或多种不同单体构成的聚合物
