詞語：protraction
protraction的同義詞
n. continuation ，lengthening ，lengthiness ，perpetuation
protraction的解釋
protractionn. 伸長，延長；製圖
protraction的意思
protraction 伸長;前伸;延長;伸展;dose protraction 劑量遷延;釋義：長時間低照射量,劑量延長分割;連續弱劑量;劑量延伸;Front Protraction 前伸;protraction exposure 釋義：低量長時間照射;Rear Protraction 後伸;
protraction的參考例句
1.In addition, the most practical representation and protraction methods will be studied. 同時，探索出最適合箱包設計的表現與繪製方法。
2.Classical wrapped V-belts feature high strength, low protraction, small matching tolerance and a fatigue endurance limit of over 107times. 普通V帶具有高強力，低伸長，配組公差小，耐疲勞度達107次以上等優點。
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類錯牙合矯治前、後頭影測量變化，評價前牽引聯合快速擴弓治療的療效。