A barometric altimeter indicates height above sea level or some other selected elevation.
气压高度表用以指示海平面或另外某个被选定高度以上的高度。
Barometric pressure lifting devices can be adjusted to different height. Convenient for baby-mother communication.
气控升降装置可以调节高低，方便母婴交流；
Barometric pressure lifting devices can be adjusted to different height. Convenient for baby-mother communication.
气控升降装置可以调节高低，方便母婴交流；
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