Step3 upper arm and slowly expiratory, stretch forward.
step3 呼气，手臂及上半身慢慢向前伸展。
In his hands, the body slowly carried from the bed surface, to receive an abdomen expiratory, to the highest level stopped about 10 seconds.
双手抱头，将身体慢慢抬离床面，收腹吐气，到最高点时停约10秒。
In the beginning stages of breathing, compliance is increasing gradually and slowly while compliance is in a downward trend in end-expiratory.
呼气期开始阶段顺应性仍缓慢增加，呼气末期顺应性有下降趋势。
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