短语词组短语bending g line 弯曲线;弯度线Same bending line 折弯线共线bending moment influence line 弯矩影响线Bending Line Misalign 反折偏位Steel bar cold bending line 钢条冷弯生产线tension -bending-leveling line 拉伸弯曲矫直机Line bending 线折弯 返回 bending line