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1)  expand into
扩展成
2)  extending forming
扩展成形
1.
Manufacturing semisolid A2017 alloy by srs process and semisolid extending forming;
A2017半固态合金的半固态扩展成
2.
Numerical simulation of continuous extrusion extending forming for copper bus-bar based on finite volume method;
基于有限体积法的铜母线连续挤压扩展成形的数值模拟
3.
Contrast analysis of extending forming between continuous extrusion and forward extrusion
连续挤压与正挤压在扩展成形中的对比分析
3)  extended-field of view imaging
扩展成像
4)  nucleation and expansion of deep rock crack
成核扩展
5)  formation and spreading
形成与扩展
6)  urban expansion
建成区扩展
1.
It was important to obtain timely the area and speed data of urban expansion for drafting the sustainable development stratagem of society.
近年来,浙江省经济飞速发展,城镇规模迅速扩大,但有关全省城镇建成区扩展面积的具体数量和扩展速度的客观数据还很缺乏。
2.
The spatial-temporal features of the urban expansion and the relationship between population growth and urban expansion during the 30-year period were analyzed by using expansion speed,expansion elasticity and fractal dimension.
以遥感影像为数据源,借助GIS技术提取了6个时期的昆明市建成区扩展及对周边土地占用的信息。
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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