短语词组短语bourdon n tube 布尔登管;波登管Bourdon -tube manometer with electric contacts 电接点弹簧压力表Bourdon n tube gage 波登管压力计bourdon n tube controller 弹簧管调节器Bourdon E tube 包端管duplex -type Bourdon-tube 复合式巴登管 返回 bourdon tube