The plate type coiled pipe or spiral pipe is molded by two flat plates with corresponding grooves or a convex and a concave plates which are oppositely pressed. 板式盘管或螺旋管是由两片有对应凹槽的平板或凸、凹板对压成型的。
Focusing properties of Gaussian beam induced by nonspiral and spiral phase plates are investigated numerically. 研究了高斯光束经过非螺旋和螺旋两种相位片后的聚焦性质。
The paper describes the design theory and design thinking of the state-patented LX type ammonia converter internals. It makes discussion on this internals with regard to the problems of gas flow distribution as well as the matching of heat of reaction with heat removed by spiral cooling plates etc. 介绍了获国家专利的LX型氨合成塔内件的设计理论和设计思路.对该内件的气流分市、螺旋冷板的移热与反应热相适应等问题进行了讨论。
Discussing the spiral direction of a ball mill's lining plates with spiral grooves 球磨机螺旋沟槽衬板螺旋方向探讨
Study on The Stability of Stayed Spiral Plates 加撑螺旋板稳定性研究