The physical properties of medium-vinyl butadiene rubber (MVBR) and its application in crown compound of bias truck tire were experimentally compared to those of BR.
试验对比中乙烯基聚丁二烯橡胶(MVBR)和BR基本物理性能和在胎冠胶中的应用效果。
Calixarene is a kind of respecting host macrocyclic compound followed cyclodextrin and crown ether, and has strong ability of selective extraction of metal ions.
杯芳烃作为继环糊精、冠醚之后的第三代大环类主体化合物，对金属离子具有较强的选择性萃取作用。
The framework of the long-stroke pumping unit with compound crown sheave consists of a flat frame with four columns, two cantilever beams and two back legs.
复合天轮式长冲程抽油机主架由四柱扁框架、两个悬臂梁和两个后支腿组成。
In construction design, two formula and three pieces are used in the tread, a good wear resistant compound is used in the crown and a compound with higher modulus and lower compression set is used...
在施工设计方面，胎面采用两方三块，冠部使用耐磨性好的胶料，侧部采用定伸应力大、压缩变形小的胶料。
In construction design, two formula and three pieces are used in the tread, a good wear resistant compound is used in the crown and a compound with higher modulus and lower compression set is used...
在施工设计方面，胎面采用两方三块，冠部使用耐磨性好的胶料，侧部采用定伸应力大、压缩变形小的胶料。
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