剖面图section, sectional view 重合剖面coincide section, 移出剖面removed section 剖面线section line 剖面符号symbols for section-lining 习惯画法conventional drawing 局部放大图 drawing of partial enlargement 零件图detail drawing, working drawing ! 第三角投影third angle projection 粗实线continuous thick line, full line, visible line 细实线continuous thin line 虚线dot line, dashed line, hidden line 点划线dash and dot line 双点划线double dots line 波浪线break line 断裂线 Qo 剖切平面迹线cutting plane line 尺寸线dimension line 尺寸界线extension tine 尺寸dimension size 箭头arrowhead 基准datum 基准线datum line 基准面datum plane 中心孔central hole 中心距center distance 轴shaft, axle 96Wq rK% 斜孔inclination 装配图assembly drawing 性能尺寸characteristic dimension 大小尺寸size dimension 总体尺寸outer dimension _ 配合尺寸fit dimension 内圆角fillet 外圆角round 尖角sharp corner 轮缘flange of wheel 缘、边、环rim 轴肩shoulder 凸台boss 凹坑concave pit 轴颈shaft neck 轮毂hub 轮辐spoke, spoke of wheel 直纹滚花straight knurling 网纹滚花hatching knurling 键槽key-way 退刀槽escape 拔模斜度pattern draft 填料盒gland box 油槽oil groove 油封oil seal 标准件standard parts 螺纹thread 外螺纹external thread 内螺纹internal thread 大径major diameter 小径minor diameter 螺距pitch of thread 牙型form of thread 旋向direction of turning 右旋螺纹right-hand thread 左旋螺纹left-hand thread 头数number of thread 导程lead 粗牙coarse thread 细牙fin thread 螺栓bolt 螺钉screw 螺柱stud 螺母nut 垫片washer 公差tolerance 公差带tolerance zone 零线zero line T 标准公差standard tolerance 公差等级tolerance grade 基本偏差fundamental deviatio 配合fit 间隙配合clearance fit 过盈interference 过盈配合interference fit 过渡配合transition fit 基孔制hole-basic system o 基轴制shaft-basic system 间隙clearance 形状公差tolerance in form, form tolerance 直线度straightness 平面度flatness 圆度roundnes 圆柱度cylindricity 线轮廓度profile of any line 面轮廓度profile of any plane 位置公差tolerance in position, 平行度 parallelism 齿轮gear 圆柱齿轮cylindrical gear 正齿轮spur gear 斜齿轮spiral gear 轮齿gear tooth 节圆pitch circle 齿顶圆addendum circle, outside circle 齿根圆root circle, addendum circle 模数modulus 齿数number of teeth 齿高tooth height 齿顶高height of addendum 齿根高height of addendum 齿厚circular thickness 齿间tooth space 齿宽tooth width 压力角angle of pressure 弹簧spring 销pin 圆柱销round pin
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