The flow of rubber compound in the screw channel was analyzed with the basic equation of the viscous fluid kinetics.
应用粘性流体动力学基本方程，分析了聚合物物料在螺槽中的流动。
2
Design a new outdoor fire hydrant, fire hydrants in the compound have been adopted in the multi-screw mechanism, the traditional fire hydrant to the transformation of the structure.
设计了一种新型室外消防栓，在消防栓中采用了复式螺纹机构，对传统的消防栓的结构进行了改造。
3
The utility model relates to a compound cleaning brush which is composed of a brush holder and a brush head, wherein the brush holder is connected to the brush head by screw threads.