Its series main parameters include lifting capacity, operation class, working speed, lift height, span etc.
它的系列主参数包括起重量、工作级别、工作速度、起升高度与跨度等等。
Pneumatic operation device to screen frame makes speed and height of screen lifting adjustable.
气压式离版装置，使抬版的速度、高度可调节。
Are you lifting your knees the right height?
膝盖是否抬到了正确的高度？
Are you lifting your knees the right height?
膝盖是否抬到了正确的高度？
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