基: base; foundation圆: round; circular; spherical导程: helical pitch; lead角: role; part; character分度圆导程角: lead-angle导程角: angle of lead; lead angle导程角切线: tangent of lead angle导程角正切: tangent of helix angle; tangent of lead angle导程角，螺纹升角: lead angle螺旋线导程角: angle of thread分度圆柱导程角: lead angle at reference cylinder目标移动导程角: target motion lead angle基圆: base circle; basic circle; circle of correction; fundamental circle; ground circle; primary circle; primitive circle; rolling circle; zero circle导程: helical pitch; lead◇导程检查仪 lead gauge; lead tester圆导杆: round guide bar圆导轨: circular guideway; round guide圆导体: round conductor圆导线: circular conductor; round conductor; round wire波程角: wave angel; wave angle高程角: angle altitude进程角: advance angle射程角: range angle基圆柱: base cylinder基圆锥: base cone椭圆导套: oval bush
