介绍德国Q系列燃气表的结构及工作原理、技术数据、试验记录、选型与施工要求、实际应用。
The structure and operating principles, technical data , test records, type selection and demands in installation , and actual application of German Q series quantometers are described.
介绍德国Q系列燃气表的结构及工作原理、技术数据、试验记录、选型与施工要求、实际应用。
The structure and operating principles, technical data , test records, type selection and demands in installation , and actual application of German Q series quantometers are described.
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