Proper infection dosage and routes were selected to make the chickens artificially infect avian colibacillosis successfully. 选择适宜的攻毒剂量和攻毒途径,诱发淮南麻黄鸡大肠杆菌病.
他是个短小精干的爱尔兰人, 非常自负, 丑得象只猴子.He was a dapper little Irishman, very vain, homely as a monkey.这位身材短小, 面孔粗犷的财产保卫部部长在对面一张椅子上坐了下来.The short, craggy Property Protection chief settled down in a facing chair.轻薄短小、携带方便,家用、外出两相宜.Lig...
Problems were piling up at work.工作中的问题越积越多。Mail was still piling up at the office.办公室里的邮件仍在往上堆。He was piling clothes into the suitcase.他在把衣服一件件叠放进手提箱中。...
什么叫漏斗胸?What calls the funnel chest?过敏胸栏的漏斗胸.Allergy to pectus bar for funnel chest.方法1986年10月～1998年10月用改良胸骨上举术治疗182例漏斗胸患儿.Methods Been Oct . 1986 and Oct . 1998,182 patients with PE un - derwent modified sternal elevatio...