spiral curve location [测] 缓和曲线测设
spiral curve of cognition 认识的螺旋曲线 ; 熟悉的螺旋曲线
spiral curve clothold curve 螺旋曲线
logarithmic spiral curve [数] 对数螺线曲线
Spiral-curve cut 活旋切法
broken spiral curve 不完整回旋线
nth spiral curve n次回旋线
The spiral curve structure can be used in slow-wave systems.
螺旋线结构就可以作为慢波系统；
Said spiral blade has a spiral curve 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。
The wind speed basically followed empirical Ekman spiral curve with height distribution. These results could find their application in Sichuan basin universally.
风速随高度分布基本遵循经验爱克曼螺线，这一经验公式可在四川盆地内推广应用。
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