low-pressure bell-type recording flowmeter 低压钟形记录式流量计
bell pressure gage 钟型压力计
floating bell pressure gauge 浮钟式压力计
float bell pressure gauge 浮钟式压力计
bell-type low pressure manometer 钟型低压压力计
floating g bell pressure gauge 浮钟式压力计
bell-operated pressure sensing unit [自] 电铃控制的压力传感装置
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