工程图常用英语offset section复合剖视 compound section剖面图 section, sectional view重合剖面 coincide section, 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 line, hidden line点划线 dash and dot line 双点划线 double dots line 波浪线 break line
