浸根法可适用于弱毒株的大量接种。
The root soak was a method to mass inoculation of mild strains.
考察了弱毒株本身对烟草植株的影响。
We examined the effects of mild strains of TMV on the tobacco plants.
本试验用犬瘟热弱毒苗免疫的犬，提取了特异性犬脾转移因子（TF） 。
The specific transfer factor(TF) is extracted from spleen of canine that have been immunized with attenuated canine distemper vaccine(CDV).
应用弱毒系交叉保护（MSCP）是防治茎陷点型柑橘衰退病的有效方法之一。
Mild strain cross protection (MSCP) is the most effective method to control the stem pitting tristeza virus.
对鸭肝炎鸡胚化弱毒株MY接种4日龄雏鸭后的组织变化进行了动态观察比较研究。
The dynamic changes of tissue structure in 4 days old ducklings which were infected with chicken embryo attenuated strain MY of duck hepatitis virus were observed.
新城疫病毒B95 (NDV B95)是从国外引进的一株热稳定性的天然弱毒株。
Newcastle disease virus (NDV) avirulent strain B95 was newly introduced from abroad.
本试验用强迫猪链球菌反复通过不易感的鸡体继代的生物学方法，选育出一株弱毒猪链球菌。
The C_(135) strain attenuated from a prototype of streptococcus suis through repeated insusceptible chicken passage pathway is successful and here presented.
对分离的痘病毒进行动物致病性试验、病毒分离传代和致弱试验、致弱毒保护力试验和返强试验。
The virus was analyzed by the animal pathogenicity test, virus attenuation, protection of the attenuated virus and virulence return experiment.
常温耐热型弱毒活疫苗对预防畜禽疾病具有重要作用，对它的研究越来越多，尤其是耐热冻干保护剂。
Hyophilized heat-resisting protector activity vaccines was importance to prevent epidemic diseases of animals, and was studied more and more, especially in hyophilized heat-resisting protector.
本发明还公开了所述基因缺失菌株在制备支气管败血波氏杆菌基因缺失疫苗（弱毒活疫苗）的应用。
The invention also discloses the application of the gene deleted bacterial strain in preparing the Bordetella bronchiseptica gene deleted vaccine (attenuated live vaccine).
如构建出突变体库，从中筛选出毒力减弱的副猪嗜血杆菌突变菌株，对研制出基因工程弱毒活疫苗具有重要意义。
So it's has great significance to construct the mutant storehouse and slecte the toxicity weak Hps mutant strain for developing the genetic engineering attenuated vaccine.
应用组织学方法比较观察了猪繁殖与呼吸综合征病毒（PRRSV）弱毒细胞疫苗与灭活疫苗生殖道黏膜免疫的效果。
The effect of mucosal immune of porcine reproductive and respiratory syndrome virus (PRRSV) attenuated and disactived vaccine was investigated by histological method.
Astrogenetix利用这快速繁殖和超活性状态去遥控沙门氏菌负责感染的基因然后去除这强毒基因以建立疫苗弱毒株。
Astrogenetix took advantage of that fast-growing, super-active state to home in on the salmonella genes responsible for infectiousness, and then removed said genes to create a weak vaccine strain.
为了解乙型脑炎（乙脑）减毒活疫苗弱毒株SA14142神经毒力的减弱程度，本文对弱毒株及其原株SA14强毒株进行了猴体和小白鼠的致病性和病理学变化的比较试验。
In order to study the attenuation of neurovirulence of SA14 14 2 attenuated vaccine virus, monkeys and mice were tested with the strain and its parent SA14 virulent strain.
气管IEL数目的变化：PRRS弱毒株鼻腔免疫组IEL数量比对照组和肌肉免疫组呈极显著增加（P<0.01），PRRS弱毒株肌肉注射免疫组IEL数量与对照组无显著变化。
The results showed that the numbers of IEL in tracheas was increased significantly (P<0.01) with PRRS attenuated strain immunization by nasal route contrast to muscle injection and control group;
结论纳米级水镁石纤维粉尘具有明显的细胞毒性，其细胞毒作用较普通水镁石纤维粉尘强，较石英粉尘弱。
Conclusion The cytotoxicity of millimicron brucite fiber was obviously stronger than common brucite fiber, but much weaker than quartz dust.
结论纳米级水镁石纤维粉尘具有明显的细胞毒性，其细胞毒作用较普通水镁石纤维粉尘强，较石英粉尘弱。
Conclusion The cytotoxicity of millimicron brucite fiber was obviously stronger than common brucite fiber, but much weaker than quartz dust.
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