helix pitch error 螺距误差
pitch helix 节圆螺旋线 ; 节距螺旋线 ; 节螺旋线
Variable Pitch Helix 可变投放螺旋
pitch of helix 螺旋节距
helix with variable pitch 变螺距螺旋线
double pitch tapered helix 双渐变螺旋线
From the STMimages, we could see clearly the helix pitch and helix diameter of helix structure.
由STM图象中我们能清晰地观察到螺旋结构的螺距与螺径。
The resulting machining marks are, therefore, a helix having a very small pitch, which is equal to the feed. Consequently, the machined surface is always cylindrical.
所以，由此产生的机加工痕迹是一条具有很小节距的螺旋线，该节距等于进给。因此机加工表面始终是圆柱形的。
According to the new national gear standard, three deviation-measuring items must be included in the checkout of single gear: profile deviation, helix deviation and pitch deviation.
按照新的国家齿轮标准规定，对于单个齿轮必须检验三个偏差项目：齿廓偏差、螺旋线偏差和齿距偏差。
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