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1、常用术语（英汉对照）投影 projection投影中心center of projection投影面projecting plane投影线projecting line中心投影法perspective projection平行投影法parallel projection斜投影oblique projection正投影orthographic projection正投影面frontal plane of projection侧面投影面profile plane of projection投影图projection drawing三面投影图three-plane projection drawin
2、g投影轴axis of projection投影特性characteristic of projection不变性characteristic of true积聚性characteristic of concentration类似性characteristic of similarity视图view三视图three-view drawing正面frontal plane正面投影frontal projection水平面horizontal plane水平投影horizontal projection侧面profile plane侧面投影profile projection主视图frontal
3、view俯视图top view左视图left side view立体solid平面立体plane body曲面立体body of curved surface回转面surface of revolution棱柱prism棱锥pyramid边side顶点center vertex棱edge点point直线line straight line棱锥台truncated pyramidfrustum of pyramid重影coincidence of projection积聚concentrate变形deformation实长true length 实形true shape正平线frontal li
4、ne水平线horizontal line侧平线profile line一般位置直线oblique line铅垂线vertical line, frontal-profile line正垂线horizontal-profile line侧垂线frontal-horizontal line一般位置平面oblique plane相交intersection平行parallel垂直perpendicular交线intersecting line, line of intersection交点point of intersection平行线parallel line垂直线perpendicular li
5、ne交叉线skew line长度length 宽度width高度height组合体complex基本几何体basic body相接built-up相交inter section相切tangent相贯penetration支架brace底板bottom board肋rib支承板bearing plate轮廓线outline, contour line底图traced drawing截平面cutting plane截交线line of section二重性dual nature平面曲线plane curve圆弧arc椭圆ellipse长轴major axis短轴minor axis双曲线hyper
6、bola抛物线parabola圆circle圆锥顶conic apex 相贯体intersecting bodies相贯线line of intersection空间曲线space curve截平面方法cutting plane method辅助面auxiliary surface辅助平面auxiliary plane最高点culminating point尺寸Size定形尺寸size dimension定位尺寸location dimension左视图right view后视图rear view, back view仰视图bottom view辅助图auxiliary view局部视图par
7、tial view, broken view斜视图oblique view旋转视图revolved view, aligned view剖视图sectional view, section全剖视full section半剖视half section局部剖视图partial section, broken-out section斜剖视图oblique section旋转剖视图aligned section阶梯剖视echelon section, offset section复合剖视compound section剖面图section, sectional view重合剖面coincide sec
8、tion, revolved 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 li
9、ne, hidden line点划线dash and dot line双点划线double dots line波浪线break line断裂线剖切平面迹线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孔hole斜孔inclination装配图assembly drawing性能尺寸characteristic dimensio
10、n大小尺寸size dimension总体尺寸outer dimension外形尺寸配合尺寸fit dimension内圆角fillet外圆角round尖角sharp corner倒角chamfer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 s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oi
11、l 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toleranc
12、e zone零线zero line标准公差standard tolerance公差等级tolerance grade基本偏差fundamental deviation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 of fits 基轴制shaft-basic system of fits间隙clearance形状公差tolerance in form, form tolerance直线度straightness平面度flatness圆度roundness
13、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, position tolerances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
14、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圆锥销taper pin开口销cotter pin, split键key平键flat key半圆键half round key, woodruff key轴承bearing滚动轴承rolling bearing向心铀承radial bearing密封装置sealing equipment锁紧装置locking equipment粗糙度roughness基本尺寸basic size实际尺寸actual size极限尺寸limits size最大极限尺寸maximum limit of size最小极限尺寸minimum limit of size偏差deviation上偏差upper deviation下偏差lower deviation垂直度perpendicularity倾斜度angularity同轴度concentricity对称度symmetry位置度true position跳动run-out圆跳动cycle run-out全跳动total run-out
