主题：机械制图常用英语词汇

公差/值(tolerance/value)
基本尺寸(basic size)
偏差(deviation)
上/下偏差(upper/lower deviation)
配合/间隙配合/过盈配合/过渡配合(fit/clearance fit/interference fit/ transition fits)
单/双边公差(unilateral/bilateral tolerance)
标准/精度公差(standard/ precision tolerance)
基准/特征/点/线/平面/轴线(datum/feature/point/line/ plane/axis)
最大/小材料状态(M/LMC=maximum/least material condition)
理论正确尺寸(theoretical size )
基本尺寸(basic dimension)
直径/半径(diameter/radius)
直线度(straightness)
平面度(flatness)
圆度(circularity)
圆柱度(cylindricity)
线轮廓度(profile of a line)
面轮廓度(profile of a surface)
定向公差(orientation tolerance)
平行度(parallelism)
垂直度(perpendicularity)
倾斜度(角度) (angularity)
位置度(position)
对称度(symmetry)
同轴度(同心度) (concentricity)
圆跳动(circular runout)
全跳动(total runout)
坐标尺寸(coordinate dimensioning)
几何尺寸(geometric dimensioning)
拔模斜度(draft angle)
分型线(parting line)
外圆角/内圆角拔模斜度(rounds/fillets draft)
肋材和尖角(rib and corner)
顶/测/端视图(top/side/ end view)