screw helicoid是什么意思

用法例句

The mathematical model of ruled helicoids on torus is constructed and two expression methods of ruled helicoids are discussed.

基于圆柱螺旋面和圆环螺旋线的形成原理,构建了圆环直纹螺旋面的数学模型,讨论了圆环直纹螺旋面的两种表示方法。

Film stability of herringbone grooved journal bearing with micro-polar lubricants;

微极性流体螺旋槽径向轴承油膜稳定性