Study on the Relationship of Average Daily Gain with Net Portal Absorption of Nutrients by Portal Vein-drained Organs in Growing Pigs是什么意思_Study on the Relationship of Average Daily Gain with Net Portal Absorption of Nutrients by Portal Vein-drained Organs in Growing Pigs在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句