A viral infection may be localized disseminated or inapparent . 病毒感染可以是局限的扩散性的或不显性的。
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A viral infection may be localized disseminated or inapparent . 病毒感染可以是局限性的，扩散性的，或不显性的。
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A viral infection may be localized, disseminated, or inapparent . 病毒感染可以是局限性的、扩散性的或不显性的。
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But atypical hc and inapparent hc began to appear after 1980s , which had resulted in great loss 但自80年代以来，我国出现了温和型、非典型性猪瘟。
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Because along with the liberalization of china ’ s capital account , once the economic developing speed slows down , capital account and current account ’ s surpluses reverse to deficits , the appreciation expect of renminbi will be changed . at the same time , the high quota savings in china ’ s banks will also bring us inflation pressure , inapparent currency substitution may be turn into visible currency substitution . also , the great deal of currency substitution inclining may convert into real currency substitution because of the vulnerable financial system 但另一方面,它又离我们那么近,因为随着中国资本账户开放的逐渐深入,一旦我国经济不能保持高速发展,资本账户和经常账户双顺差现象出现逆转,人民币升值的预期将被改变,而我国高额的人民币储蓄也将给我国带来通胀压力,隐性的货币替代将有转为显性货币替代的可能,由于金融体系脆弱性所造成的大量货币替代倾向也很可能转化为真实的货币替代。
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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。
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