Bourdon pressure vacuum gauge的意思|示意

包尔登低压真空计 ... bourdon tube temperature gauge 波登管式温度表 Bourdon pressure vacuum gauge 包尔登低压真空计 Bourdon gauge flowmeter 波登表流量计 ...

布登低压真空计 bourdon pressure vacuum gauge 包尔登低压真空计; 布登低压真空计 combination vacuum and pressure gauge 组合真空压力计 ..