英 [prəˈtrækʃ(ə)n] 美 [proʊˈtrækʃn]
n. 伸长，延长；制图
proˈtraction /prəˈtrækʃən/
名词 the act or process of protracting 伸长
the consequence of being lengthened in duration
同义词： lengthiness / prolongation / continuation
the act of prolonging something
同义词： prolongation / perpetuation / lengthening
前方牵引-引用次数：21
Objective To evaluate the maxillary protraction appliance permanent teeth combined rapid expansion of early bone anterior crossbite effectiveness.
目的 评价前方牵引器联合快速扩弓矫治恒牙早期骨性前牙反牙合的有效性。
前伸
伸展；突出(retract之对)：
... protracted 拖延的 protractile 伸出的 protraction 伸长 ...
... protractedlabor滞产 protraction前伸 protrusion伸出 ...
... protracted延长的 protraction延长；伸展；拖长；绘制 protractor量角器 ...
... protracted延长的 protraction延长；伸展；拖长；绘制 protractor量角器 ...
protracted 拖延的
protractedly 拖延地；延长地
protractor 伸肌；分度器；伤处异物摘出器
protracted 拖延；绘制；伸展（protract的过去分词）
protract 绘制；延长；伸展
伸长，延长；制图
We see the conflict leading to a protraction of Libya's oil shortages.
我们看到冲突已经造成了利比亚石油短缺的进一步升级。
It realizes graphics protraction of time and frequency domain in every time period.
它实现了各个信号的时域和频域的图形的绘制。
Results The new anchorage implants were stable almost in every protraction experimental study.
结果在所有实验中支抗种植体稳定性良好。