For preference the chair should be pneumatically adjustable so that you can adjust seat pan height while you are sitting on the chair.
英
美
- 對于偏好主持會(huì )議應氣動(dòng)可調，使您可以調節座椅高度潘當你坐在主持會(huì )議。Some chairs have a mechanical height adjustment (spinning) mechanism that is also acceptable.；有椅子有機械高度調整（紡紗）的機制，這也是可以接受的。
