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- AIthough the 359 bp fragment probe spans the sequence encoding the proteolytic clea-vage site of the Fo protein,it could not differentiate the genome RNA of virulentstrain from the one of avirulent strain. 试验结果表明：尽管该探钎含有编码Fo蛋白酶切位点序列的碱基顺序,但它还是不能把NDV的强、弱毒株区分开。
- The Antivirus Mechanism of Avirulent Strain CMV S52 毒疫苗CMV-S52的抗病毒机理
- This strain of wheat can grow during a cold spring. 这种小麦可以在寒冷的春天生长。
- Isolation and Identification of Natural Avirulent Strain of Newcastle Disease Virus from Goose 鹅源新城疫病毒自然弱毒株的分离与鉴定
- He finally break down under the four-hour's strain. 在四小时的压力下他终于支持不了。
- Paying all the bills is a strain on my resources. 支付所有这些费用是我经济上的一大负担。
- Her speech continued in the same dismal strain. 她以悲伤的语调接著往下说。
- Could you stand the strain? Oh, that's nothing. 这样累你受得了吗？这没什么。
- He broke under the strain of heavy work. 他在繁重工作的压力之下累坏了。
- There's a strain of madness in the family. 那一家人都有点疯疯颠颠的。
- natural avirulent strain 自然弱毒株
- He was breaking up under the strain. 他劳累过度，身体逐渐衰弱。
- avirulent strain 无毒株
- The official was warned not to strain his power. 那个官员受到警告，不可滥用职权。
- He pitched his story in a sentimental strain. 他把故事写得带有伤感情调。
- Strain began to tell on his health. 过度劳累开始影响他的健康。
- We'll finish the job at full strain. 我们将竭尽全力来完成此项工作。
- We should strain every nerve to do the work. 我们应该竭尽全力来做这项工作。
- He wrote letters in a happy strain. 他用愉快的笔调写信。
- Beg H online little game wants avirulent ah! ! 求H在线小游戏要无毒的啊！！
