
Aerials for the reception of sound and television broadcasting in the frequency range 30 MHz tr 1GHz Part 4:Methods of measurement of mechanical properties vibration and environment tests
标准号:SJ/Z 9097.3-1987
Aerials for the reception of sound and television broadcasting in the frequency range 30 MHz tr 1GHz Part 4:Methods of measurement of mechanical properties vibration and environment tests
标准号:SJ/Z 9097.3-1987