... PA Posterior-anterior 后前位的 posterior-anterior view 后前图 posterior-anterior position mandibular roentgenograph 下颌骨后前位投照术 ...
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处理后的前景视图 processed foreground
将变形前后的图形输出 DRAW
患者治疗前后胃电图 electrogastrogram ; EGG
报警前/后图像 Pre/post alarm images
方法：30例阻塞性睡眠呼吸暂停患者，耳穴贴压治疗前及治疗后10天进行夜间7小时多导睡眠图监测。
Methods 30 cases of OSAS were monitored with a polysomnography (PSG) during 7-hour night sleep before and after receiving a 10 day ear point tapping and pressing therapy.
本文采用超声心动图研究了心脏起搏前、后的血液动力学变化 ，以评价不同起搏方式的血液动力学效应。
To evaluate the hemodynamic effects of different pacing mode, we studied changes of hemodynamics before and after the cardiac pacing.
以上是43岁的伊舍·高卢理发前(左图)后(右图)的照片，她喜欢自己的新发型，并表示：“我的面部看上去更突出了，而且这个发型把它修饰得更优雅了。”
Esher Gaul, 43, pictured (left) before and (right) after, loves the new haircut. She said: 'My face looks lifted and the hair frames it beautifully'.
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