The mechanism of High speed spindrawing for manufacturing copper inner fin tube is studied systematically, especially the process and parameters of inner fin formation arc analysed.
对内螺纹理片铜管的高速旋压拉伸成形加工机理进行了系统研究，分析了加工过程及参数。
2
An improved process for the spin-drawing of high-tenacity, technical-grade yarns is disclosed.
一种改进的旋转过程中的高拉韧性，技术级纱线被披露。
3
The experiment device schematic diagram is shown in the drawing 1 of the abstract and can be used to measure the ambipolar diffusion constant of electron spin;