By using a litter treatment to limit ammonia production, ventilation rates during brooding can be kept to a minimum, reducing heating costs by 30%.是什么意思_By using a litter treatment to limit ammonia production, ventilation rates during brooding can be kept to a minimum, reducing heating costs by 30%.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句