农业专业英语词汇(D-E)yy31daconil 百菌清dacryoadenitis 泪腺炎daep 敌磷daily periodicity 日周期daily schedule 日程表daily variation 日变化dairy by product 乳副产品dairy cow 乳牛dairy equipment 奶品加工设备dairy farming 乳牛业dairy stock 奶畜dai