elastic packing造句

例句与造句

1. Experimental study of treating wastewater in river with elastic packing
   弹性填料处理河道污水实验研究
2. The low cost track , which consists of the traditional wide - sleeper tack , ballast bed with rubber bits and the elastic packing material between sleepers , is a new type with three - dimensional elasitic support
   摘要介绍以传统的宽枕轨道框架、碎橡胶道床、枕端无遮挡弹性定位和枕间弹性材料密封装配成的，具有三维弹性支撑的碎橡胶道床轨道。
3. It's difficult to find elastic packing in a sentence. 用elastic packing造句挺难的