Bourdon pressure vacuum gage 波登压力真空计

partial pressure vacuum gage 分压真空计

absolute-pressure vacuum gage 绝对压力真空计

absolute pressure vacuum gage 绝对真空压力表

compound pressure-vacuum gage 真空

Bourdon n pressure vacuum gage 波登压力真空计

compound pressure and vacuum gage 压力真空表

pressure-and-vacuum gage 压力真空两用计

vacuum gage pressure 真空计压力