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- Tracheal ring across neutralize test suggested that A2 and 4/91 were the same serotype,and the 4/91 vaccine could protect the chickens challenged by A2. 气管环交叉中和试验表明A2株与 4/ 91病毒为同一血清型 ; 临床的动物免疫试验结果表明 ,4/ 91疫苗有较好的保护作用
- Abstract： There exist residual stress in rat trachea.When a no-load trachea ring is cut radially, it opens into a sector, which is the zero-stress state of the trachea. 摘 要： 大鼠气管存在残余应力,将无载荷状态的气管环径向剪开,气管环展开成扇形体,即得到气管的零应力状态。
- The proce-dire is as follows: Make a transverse inci-sion of the skin and in-between the tracheal rings and approximate the skin with the trachea at both cut ends by a single suture respectively. 这种手术主要是做皮肤和气管环间之横切，再将上、下皮肤切口分别与上、下气管切口缝合便可完成。
- She had the sapphire set in a gold ring. 她把那枚蓝宝石镶在金戒指上了。
- The diamond ring dazzled with brilliancy. 这只钻石戒指闪耀夺目。
- She wears a diamond ring on her left hand. 她左手上戴着一枚钻石戒指。
- Our family reunions are always three ring circus. 我家合家团聚的场面总是热闹非凡。
- I am sorry-she's out. Can you ring again later? 对不起－她出去了。你过些时候再打电话来好吗？
- The boys and girls made a ring round us. 男孩和女孩围着我们站了一圈。
- Please ring for the attendant if you need anything. 如果需要什么，请按铃找服务员。
- The music was so loud it made my ears ring. 音乐的声音太大了，把我耳朵震得直响。
- The policeman felt that my story didn't ring true. 警察认为我讲的话听起来不可信。
- She wears a ring round her wrist. 她的手腕上戴着一只镯子。
- Ring the correct answer with your pencil. 用铅笔圈出正确的答案。
- A pull on the rope will make the bell ring. 一拉绳子钟就响。
- He have scarcely get home when the telephone ring. 他一回到家电话铃就响了起来。
- I'll ring you up some time during the week. 本周的某个时候我给你打电话。
- The jeweller will engrave the inside of the ring with her name. 珠宝匠将在戒指的内表面上刻上她的名字。
- He can't get his ring off his finger. 他无法指导戒指从手指上拿下来。
- Foreign bodies may lodge in the trachea. 异物可能留在气管里。
