弧

• Dynamic design for high - speed cam mechanism
  含间隙弧面分度凸轮机构动力学的实验研究
• The 3d model of indexing cam with visual lisp
  实现弧面分度凸轮的三维实体造型
• Their structural environment is mainly volcanic arc
  其构造环境主要为火山弧地区。
• Arc welding equipment - part 11 : electrode holders
  弧焊设备.第11部分:焊条钳
• Yes , l phoned the police . they will confirm every word
  ? ,倒牡诡?杠.谍龟弧杠
• Arc welding equipment - part 1 : arc welding power sources
  弧焊设备.第1部分:弧焊电源
• Appends an elliptical arc to the current figure
  向当前图形追加一段椭圆弧。
• Titanium and titanium alloy welding rods and solid wires
  钛及钛合金弧焊条及实心焊丝
• Safety requirements for the portable arc welding transformer
  小型弧焊变压器安全要求
• Practice for enclosed carbon - arc exposures of plastics
  塑料封闭碳弧曝光惯例