Virulence detection of challenge virus on guinea pigs used as model animals for potency tests of FMD vaccine and the freeze-drying tests of FMD virus是什么意思_Virulence detection of challenge virus on guinea pigs used as model animals for potency tests of FMD vaccine and the freeze-drying tests of FMD virus在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句