.Tolerance :公差,容许间隙,允许限度Dimension:尺寸,尺度Allowance 加工余量,容许误差Engineering drawing 工程制图Force fit 压力配合Shrink fit 热压配合Running fit松动配合Clearance fit间隙配合Interference fit 过盈配合Transition fit过渡配合Nominal size公称尺寸Basic hole system基孔制Basic shaft system 基轴制Limit dimensioning 极限尺寸标注Unilateral tolerance 单向公差Bilateral tolerance 双向公差Locating 工件定位,放样Accuracy 精度,准确度Sealing 密封,绝缘Packing密封垫,密封件Journal 轴颈,辊颈Bracket 支座,轴承架Piston 活塞Commensurate同等大小的,相称的Surface roughness 表面粗