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- Keywords Polylactic acid;polymerization condition;copolymerization ratio;mechanical property;degradability; 聚乳酸;聚合条件;共聚比;力学性能;降解性能;
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- copolymerization ratio 共聚比
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The first or last term of a ratio or a series. 首项，末项比率或数列中第一个或最后一个项
- Nanocomposite of styrene and butyl-acrylate copolymer (PSA)/organic-montmorillonite was synthesized by emulsion copolymerization. 摘要以乳液插层聚合法合成苯乙烯-丙烯酸丁酯／蒙脱土纳米复合材料。
- Combining the copolymerization principle,the compatibilization of synthesized copolymer from SBS graft MMA to PS/PVC copolymer was determined. 结合共聚原理,成功地确定了此接枝共聚物作为PS/PVC共混体系的增容作用。
- Then the copolymer of octadecyl acrylate with maleric anhydride is obtained by solution free radical copolymerization and it is a pour depressant. 用合成的丙烯酸十八酯与顺丁烯二酸酐共聚,得到二元共聚物型原油降凝剂。
- The vinylidene chloride (VCD)/vinyl chloride (VC) copolymer resin was prepared via suspension copolymerization process in this paper. 采用悬浮共聚的方法研制了偏氯乙烯 /氯乙烯（ VDC/VC）共聚树脂。
- After-tax profit margin is the ratio of net income to net sales. 税後利润率指净收入与净销售之比。
- Solution of a copolymer with acidic groups. 含酸性基的共聚物溶液。
- The ratio of men to women was two to one. 男女的比例是二比一。
- Then the copolymerization of ZLH and MMA was carried out in the presence of CDB, the copolymer structure was characterized in detail. 然后，在CDB作用下将ZLH与甲基丙烯酸甲酯（MMA）共聚，得到了ZLH与MMA的共聚产物并对共聚产物进行了结构表征。
- One of the compounds that constitute a copolymer. 共聚用单体构成共聚物的化合物的一种
- The graft copolymer was indentified by IR. 利用红外光谱对接枝共聚物进行了表徵。
- The interval between any two frequencies having a ratio of2 to1. 倍频程频率比率为2比1的两个频率的间隔
- The monomer and copolymer were characterized by IR. 单体及共聚物用IR等进行了表征。
- Homopolymer and copolymer resins of vinyl chloride. 氯乙烯均聚物和共聚物树脂。
- The SBS block copolymer is one kind. SBS嵌段共聚物就是一种。
