protraction
短语词组
- Protraction pattern 拖延型式迟滞
- protraction movement 前伸运动
- protraction Å 伸长
- maxillary protraction 前方牵引;上颌前牵引;上颌前方牵引;前牵引
- Low Protraction 低伸长
- protraction calculation 伸长量测算
- protraction E 伸长
- protraction dose 延长剂量;[核]迁延剂量;剂量延长
- Rear Protraction 后伸 返回 protraction