velogenic strains造句

• All the result showed that ndv f48e9 strain has its own speciality compared with other five ndv strains, and there were many difference between velogenic strains and lentogenic strains . so the infectious cdna of rnesogenic strains and lentogenic strain was far from enough to understand the replication, pathogenicity of ndv and the interaction between ndv and host cells, and the infectious cdna of velogenic strains ( eg . . f48e9 ) was required to explain the relationships between structure and function
  本研究成功地获得了ndvf48e9t因组的核昔酸序列，并构建了表达ndvf48e9基因组cdna的低拷贝表达载体休f48e9，为构建新城疫病毒强毒株f48e9株的感染性cdna奠定了物质基础，进一步研究ndv的生物学特性、结构与功能的关系；进一步探讨影响ndv毒力的因素、以及研制新型疫苗载体提供了可靠保证。
• All the result showed that ndv f48e9 strain has its own speciality compared with other five ndv strains, and there were many difference between velogenic strains and lentogenic strains . so the infectious cdna of rnesogenic strains and lentogenic strain was far from enough to understand the replication, pathogenicity of ndv and the interaction between ndv and host cells, and the infectious cdna of velogenic strains ( eg . . f48e9 ) was required to explain the relationships between structure and function
  本研究成功地获得了ndvf48e9t因组的核昔酸序列，并构建了表达ndvf48e9基因组cdna的低拷贝表达载体休f48e9，为构建新城疫病毒强毒株f48e9株的感染性cdna奠定了物质基础，进一步研究ndv的生物学特性、结构与功能的关系；进一步探讨影响ndv毒力的因素、以及研制新型疫苗载体提供了可靠保证。
• Newcastle disease is a highly contagious and economically most important disease of poultry . the disease also inflicts many other avian species . the disease varies in degree of severity ranging from mild, inapparent infecion to severe disease . based on the severity of the disease in chickens, the causative agent of the disease, newcastle disease virus ( ndv ), is divided into three pathotypes : ( 1 ) the lentogenic strains, which cause mild inapparent infection; ( 2 ) the mesogenic strains, which cause mild respiratory symptoms with low mortality; ( 3 ) the velogenic strain, which are highly virulent and cause high mortality
  新城疫(newcastledisease，nd)是由新城疫病毒(newcastlediseasevirus，ndv)引起的侵害禽类的急性高度接触性传染病，是家禽传染性疾病中危害最严害的疫病之一，由于对世界养禽业危害极大，故被国际兽疫局确定为类传染病。在传染性疾病的预防中，疫苗是减少易感人群而被最广泛采用和最有效的途径。