The spiralcurve structure can be used in slow-wave systems.
螺旋线结构就可以作为慢波系统;
2
Said spiral blade has a spiralcurve extended from the tip of conic body.
另一种是近似圆锥体的母线是向锥体外凸出的曲线。螺旋叶片垂直于锥体表面。
3
The wind speed basically followed empirical Ekman spiralcurve with height distribution. These results could find their application in Sichuan basin universally.