
BS ISO 11093-8. Paper and board. Testing of cores. Part 8. Determination of natural frequency and flexural modulus by experimental modal analysis
出版:British Standards Institution

專家解讀視頻
BS ISO 11093-8. Paper and board. Testing of cores. Part 8. Determination of natural frequency and flexural modulus by experimental modal analysis
出版:British Standards Institution
專家解讀視頻