So it is not surprising to see the pathological changes of any position in the body from the ear.
因此，在耳朵上可以观察到身体任何部位的病理变化也就不足为奇了。
Body gesture is the position and the changes of the body.
身体姿态的立场是和变化的机构。
By adjusting the axial position of the roller shelf and the pump body, gap between pressure-bearing pipes changes within a certain range, thereby the application scope of the pump head is expanded.
该蠕动泵通过调节滚轮架与泵体的轴向位置，使压管间隙在一定范围内变化。从而扩展了泵头的使用范围。
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