The heat calculation of multi-layer cylinder lining at un-steady 圆筒形多层砌体非稳态热计算
The knitting method for multi-layer compound fabric with spun-silk, polyester and polyester/ ramie yarn on UP 372 double cylinder jacquard knitting machine and the machine adjustments for the knitting process are described. 本文介绍了在UP372型双面圆机上交织蚕绢丝、涤、涤/麻三层复合织物的方法,并对编织工序中的设备调试作了分析。
Based on the theory of multi-layer composed thick-wall cylinder, the elastic-plastic analysis of the casing-concrete sheath-rock combination was made. 基于多层组合厚壁圆筒理论,建立了套管、水泥环及井壁围岩组合体的力学模型,对均匀地应力作用下的组合体进行了弹塑性分析。