infectivity的造句（例句）：
1、Viruses do not loose their infectivity following their adsorption to a solid particles.
病毒吸附到固体颗粒上后并不丧失它们的感染力。
2、The least potent bugs inhibited the virus' infectivity by 6.7 percent;
效力最小的可以抑制细菌6.7%的传染性；
3、Objective to explore the way of fast control of schistosome infectivity in susceptible zones.
目的探讨快速控制血吸虫病易感地带感染性的方法。
