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。
参考来源 - 前方牵引器联合快速扩弓矫治骨性前牙反牙合的临床应用—《中国保健》—2010年第10期—龙源期刊网·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N the act or process of protracting 伸长
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。
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