gear helical angle 齿轮螺旋角
equal helical angle 等螺旋角
critical helical angle 临界螺旋角
helical angle of spring 弹簧螺旋角
isometric helical angle tool 等螺旋角刀具
equal partition of helical angle 螺旋角任意等分
helical angle scale division circle 分度圆螺旋角
helical rake angle [机] 螺旋截尖角 ; 铣刀的
helical gear with helix angle 带螺旋角的螺旋齿轮
Every customer has difference in the type of drill bits, such as length, helical angle and others.
每个公司要的钻头的形式有区别，长度、螺旋角等各不相同。
Furthermore, the pressure drop in helical baffles heat exchangers gets down with the increase of helical Angle.
同时，随着螺旋角的增大，螺旋折流板换热器的壳程压力损失呈下降趋势。
Making use of the points measured on the drum helical curve of concrete-mixer truck, the helical Angle formula of the helical curve is obtained by means of least square method.
利用测得的混凝土搅拌车拌桶螺旋线上的一组离散点，通过最小二乘法拟合出了求解拌桶螺旋线螺旋角的公式。
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