
Vacuum technology; rules for the measurement of steam jet vacuum pumps and steam jet compressors using steam as the working fluid
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Vacuum technology; rules for the measurement of steam jet vacuum pumps and steam jet compressors using steam as the working fluid
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻