... 流行的 epidemic 流行时密度epidemic density 流行病学 epidemiology ...
双语例句
1
In the event of skyrocketing mosquito density or occurrence of JE epidemic, pesticides should be scientifically distributed and chemical control approaches intensified.
当三带喙库蚊密度高或有乙脑疫情时，应加强化学防治，做到科学合理用药。
2
Objective to study the influence of the rodent density to the incidence of leptospirosis, and work out the methods to prevent and control the leptospirosis epidemic.
目的研究鼠类种群数量变动对钩端螺旋体病(简称钩体病)流行的影响，以便制定控制钩体病流行的对策。
3
If the local rat density is more than 10%, there will may be a epidemic of leptospirosis.