| 1. | The rate of sedimentation of a suspended viral particle depends on its size and density .
悬浮病毒粒子的沉降率因其大小和密度而异。 |
| 2. | Susceptible cells, when infected at a high multiplicity of infection with virus, produce many incomplete of defective viral particles .
易感细胞感染一种能高度增殖的病毒时能产生许多不全的或缺损的病毒粒子。 |
| 3. | As peptide glycoproteins react with viral particles leaving infected cells
作为离开被感染细胞的病毒粒子起作用的胜肽聚醣蛋白。 |
| 4. | By electron microscopy , viral particles of any herpesvirus appear as arrays and scattered single particles as shown here in a nucleus of a neuron from the cerebrum from a patient with herpes simplex encephalitis
单纯疱疹病毒性脑炎，电子显微镜显示大脑神经元内的疱疹病毒颗粒成组排列或单个散在分布。 |
| 5. | Scientists have found that a chemical in the skin of the australian red - eyed tree frog can block infection by hiv - the virus that causes aids - by destroying the viral particles
美国研究人员日前研究发现，澳大利亚红眼树蛙的皮肤中含有一种化学物质，这种化学物质可以通过破坏hiv病毒来阻断艾滋病的传播。 |
| 6. | The two isolates were positive reaction hi polymerase chain reactions with two pair of primers specific for alv - j and gave antigenically strong reaction hi the indirect fluorescence antibody assay ( ifa ) with alv - j specific monoclonal antibody je9 . negatively - stained electron microscopic and immune - electron microscopic observation demonstrated that viral particles of the inner mongolia and shandong isolate of alv - j , respectively designated imc10200 and sdc2000 strain of alv - j , showed characteristic morphology of alv
利用pcr和间接免疫荧光反应进行鉴定，两株j亚群禽白血病病毒可以被两对alv - j特异性引物扩增(特异条带约2 . 2kb和545bp ) ，且在特异性单克隆抗体je9的间接免疫荧光检测中呈现强阳性荧光反应。 |
| 7. | Hepatitis d virus ( hdv ) , also known as the delta agent , is transmitted by the same routes as hbv and is an important cause of acute and severe chronic hepatitis in many parts of the world but is uncommon in asia . hdv is an incomplete viral particle which cannot reproduce in liver cells without the presence of hbv
丁型肝炎病毒，又称deltaagent ，传播途径与乙型肝炎一样，是世界多处引起急性和严重慢性肝炎的其中一个主因，但却少见于亚洲。丁型肝炎病毒是一种不完全的病毒因子，需要依附在乙型肝炎病毒中才可以在人体细胞内生存及繁殖。 |
