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- Trace Analysis of Propadiene and Propyne in Polymerization Grade Propylene by Gas Chromatography 聚合级丙烯中痕量丙二烯和丙炔的气相色谱分析
- Dual second grade third rubber Jian Chengwei EPM, three Yuan second grade propylene rubber Jian Chengwei EPDM. 二元乙丙橡胶简称为EPM，三元乙丙烯橡胶简称为EPDM。
- Determination of trace water in polymerization grade ethylene or propylene--Karl Fischer method GB/T3727-1983聚合级乙烯、丙烯中微量水的测定卡尔.;费休法
- Analysis of micro-amount CO ana CO_2 in polymer grade propylene by modified SP-3420 gas chromatograph 用改装的SP-3420型气相色谱仪分析聚合级丙烯中微量CO、CO_2
- The ambers from the different localities may be of the same geological age, but exit the different ETIR absorption bands and strength according to the different polymeric grade. 不同产地的琥珀虽具有同样的地质年代，但由于聚合化程度不同，其红外吸收光谱峰的位置和强度存有差异。
- Pupils who pass the test will be promoted to the next higher grade. 小学生只要考试及格就会升到高年级。
- He's not in the first grade as a musician. 他不是第一流的音乐家。
- Business is now on the up grade. 目前生意蒸蒸日上。
- 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
- Pupils with 90% or more are awarded Grade A. 满90分的学生评为甲等。
- Polypropylene is propylene polymerization and obtained a thermoplastic resin. 聚丙烯是由丙烯聚合而制得的一种热塑性树脂。
- The sixth grade saw an educational film yesterday. 六年级学生昨天看了一部教育片。
- He received a failing grade on the term paper. 他的期末报告不及格。
- Red and yellow grade into orange. 红与黄混合成橘黄。
- The twins will enter the fourth grade this fall. 这对双胞胎今年秋季将升到四年级。
- Their marriage is on the down grade. 他们的婚姻关系每况愈下。
- The trial flight has made the grade. 试飞成功。
- The naughty boy had to repeat the fifth grade. 这个顽皮的男孩不得不重读五年级。
- A molecule that can combine with others to form a polymer. 单体可以与其他分子结合形成聚合物的分子
- He ranks among the best pupils of his grade. 他是他们班级最好的学生之一。
