helical pitch 螺距; 螺旋节距 收藏 variable pitch cylindrical helical spring 不等节距圆柱螺旋弹簧 收藏 .
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variable pitch cylindrical helical spring 不等节距圆柱螺旋弹簧
dynamic pitch helical 动态螺距螺旋轨道
variable pitch helical blade 变螺距螺旋面
Once the program is loaded, only a few parameters are given, the development drawings of variable pitch helical blade will be obtained.
该程序一经调用，只要给出几个相关的参数，即可绘出变螺距螺旋面展开图。
The new tooth surface can be prolonged by the normal profile of the internal toroidal surface, or replaced by an equal pitch helical surface.
其二为一种修整的线接触，展成的等螺距齿面与理论轨迹曲面沿某一空间曲线近似相切。
The two helical nanofibers have absolutely opposite helical senses, but have identical cycle number, coil diameter, coil length, coil pitch, fiber diameter, and fiber cross section.
它们具有绝对相反的螺旋旋向，但却具有相同的纤维直径，纤维截面，螺旋直径，螺旋圈数，螺旋间距，和螺旋长度。
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