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1)  Extract fraction composition
级分组成
2)  gradation [英][ɡrə'deɪʃn]  [美][grə'deʃən]
级配组成
1.
On the basis of tests and statistics analysis,influence of proportion of coarse/fine aggregate contents on the gradation and volume parameters were investigated,and then the main difference and influencing factors of volume parameters and designed asphalt content between coarse/fine gradation mixes were further studied.
通过试验与统计分析,探讨了粗、细集料用量之比对其级配组成和体积参数的影响,进而探讨了粗、细级配混合料体积参数及设计沥青用量的差异及其主要影响因素。
2.
The recent domestic research achievements in gradation and asphalt content are also introduced.
总结了美国、欧洲及日本在排水性沥青混合料的材料要求、配合比设计方法及国内近年来在级配组成、沥青用量等方面的研究成果 。
3)  gradation composition
级配组成
1.
Aiming at the default of cracking of cement-stabilized macadam base course coming forth easily,under the condition of moisture and temperature changing,a research on the gradation composition design of cement-stabilized macadam mixture considering shrinkage deformation factors was developed based on trial results of aggregates and kinds of cement.
针对水泥稳定碎石基层在湿度、温度变化时易产生收缩裂缝这一缺陷,在集料、各种水泥基本性能试验结果的基础上,开展了考虑收缩因素的水泥稳定碎石集料级配组成设计研究。
2.
Gradation design method and scheme of cement-stabilized macadam with well crack resistance performance are selected by mechanics and physics performance tests,and reasonable gradation composition of cement-stabilized macadam base course materials are discuss.
运用级配设计理论和正交试验设计方法,针对水泥稳定碎石基层易产生裂缝这一缺陷,在总结已有研究成果的基础上,选取了多种典型集料级配设计方案,通过力学性能和物理性能试验,优选了抗裂性能良好的水泥稳定碎石集料级配设计方法和设计方案,并对水泥稳定碎石基层材料的合理级配组成进行了探讨。
4)  size composition
粒级组成
5)  constitution [英][,kɔnstɪ'tju:ʃn]  [美]['kɑnstə'tuʃən]
组织,级成
6)  Rating polysaccharide
分级组分
1.
Effects of Rating Polysaccharide by Alcohol in APS on the Immunity Effect of AI and ND Vaccine in Chickens
黄芪多糖分级组分对鸡疫苗免疫效果的影响
补充资料:成环加成聚合
分子式:
CAS号:

性质:又称环化聚合。多官能团单体在聚合过程中生成主链含有环状结构的聚合称为成环聚合。成环聚合又可分为缩聚成环和加聚成环两类。当分子内存在两个以上非共轭双键的烯类单体(如二甲基二烯丙基溴化铵)时,其链增长反应是发生在分子内的双键之间的加成反应,生成具有环状结构的聚合物,这种聚合就是成环加成聚合。

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