Levels of urease ammonia and urea in the rumen after withdrawing borax from sheep or in different segments of gastrointestinal tract of sheep fed with borax是什么意思_Levels of urease ammonia and urea in the rumen after withdrawing borax from sheep or in different segments of gastrointestinal tract of sheep fed with borax在线翻译_英语_读音_用法_例句