螺距

• The spiral distance formula is given by energy analysis
  用能量分析方法导出了螺距设计公式。
• Processing change thread pitch screw on general purpose machine tools
  变螺距螺杆的通用机床加工
• The isopitch blade curve on spherical cutter with protruding arc
  带凸弧的球头铣刀上等螺距刃口曲线
• Machine screwing taps for coarse pitch metric iso - thread m3 to m68
  米制粗螺距iso螺纹m3至m68机器丝锥
• Machine tools ; ball screws ; nominal diameters and nominal leads
  机床.滚珠丝杠传动.公称直径和公称螺距
• Miniature screw threads . generat plan
  小螺纹直径与螺距系列
• Continuous blade curve of isobaric pital of spherical milling cutter
  关于球头铣刀的等螺距连续刃口曲线
• Machine nut taps for coarse pitch metric iso - threads m3 to m68
  米制粗螺距iso螺纹m3至m68的机器螺母丝锥
• Accumulative pitch error measurement
  螺距累积误差测量
• Use the collective to make the loop as round as possible
  控制主旋翼的螺距，尽可能使飞行轨迹成为圆形的环状。