1. tracing:toughness 韧性 | tracing 描图 | under cut 凹割
2. 描图
2. mapping:畸形 malformation | 描图 mapping | 标记 marker
3. 描图
3. trace drawing:alignment feeler 对准测隙规, 对准厚薄规 | trace drawing 描图 | first proofing (面团)第一次醒发
4. traced drawing:trace 微量;描图 | traced drawing 描图 | tracer 描图员