aneroid barometer

aneroid-barometer的词性：
n.（名词）

1. A barometer in which variations of atmospheric pressure are indicated by the relative bulges of a thin elastic metal disk covering a partially evacuated chamber.
空盒气压表，无液气压计：一种气压表，气压变化可通过包在半空的小盒上的弹性金属片的膨起程度表示