- protraction
- n. 伸长，延长；制图
参考例子
- 1.In addition, the most practical representation and protraction methods will be studied.
- 同时，探索出最适合箱包设计的表现与绘制方法。
- 2.Classical wrapped V-belts feature high strength, low protraction, small matching tolerance and a fatigue endurance limit of over 107times.
- 普通V带具有高强力，低伸长，配组公差小，耐疲劳度达107次以上等优点。
- 3.Objective To appraise the effects of the maxillary protraction and rapid palatal expansion by analyzing the effects of two groups of children of different ages.
- 目的分析骨性Ⅲ类错牙合矫治前、后头影测量变化，评价前牵引联合快速扩弓治疗的疗效。
英文解释
- n.
- 1.the consequence of being lengthened in duration
- 2.the act of prolonging something
网络释义
- protraction
- 伸长; 前伸; 延长; 伸展;
- dose protraction
- 剂量迁延; 释义：长时间低照射量,剂量延长分割; 连续弱剂量; 剂量延伸;
- Front Protraction
- 前伸;
- protraction exposure
- 释义：低量长时间照射;
- Rear Protraction
- 后伸;