Methods of measurement of radio-noise - Emissions from low-voltage electrical and electronic equipment in the range of 9 kHz to 40 GHz是什么意思_Methods of measurement of radio-noise - Emissions from low-voltage electrical and electronic equipment in the range of 9 kHz to 40 GHz在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句