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1)  blasting cracking
爆破成缝
2)  seam blast
缝合处爆破
3)  blasting cost
爆破成本
1.
Control of blasting cost during opencast mining;
浅谈露天开采爆破成本控制
2.
During the open casting, the blasting cost usually takes up a large percentage of the whole cost of production.
矿山露天开采中,爆破成本在生产成本中占有相当大的比例。
4)  shaping blasting
成型爆破
1.
Study on controlled shaping blasting technology for jointed rock mass;
节理化工程岩体成型爆破技术研究
2.
Bilateral cumulative tensile explosion,a new controll blasting technology of cumulative explosion,is put forward and defined,which aims at resolving the problems existing in conventional blasting,smooth blasting,present control blasting and the status of complex outline shaping blasting in rock masses with high uniaxial compressive strength.
针对光面爆破和当前聚能控制爆破存在的问题,以及某特大型硐室高强度岩体复杂断面成型爆破的工程现状,提出了双向聚能拉伸爆破新技术,对其特点、相应的聚能装置、聚能爆破机理、爆破力学行为及力学模型作了详细介绍。
5)  Shaping by blast
爆破成形
6)  cavity making by explosion
爆破成腔
1.
Experiment on technique of cavity making by explosion in agriculture;
农田爆破成腔技术的试验研究
2.
An orthogonal experiment was carried out by L4(2 3) orthogonal array to study the function of cavity making by explosion in water storage and soil moisture holding in loess field.
采用 L4 ( 2 3)正交表做 1/ 2实施试验 ,研究爆破成腔技术在黄土高原土壤蓄水保墒中的作用。
3.
Density of cavity, its burying depth and water proof method to cavity bottom are the three key factors of technique of cavity making by explosion in farm land.
腔体密度、埋深和孔底防渗处理措施是农田爆破成腔技术的 3个要素。
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。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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