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- Natural infectious loci 疫源地
- Objective To understand the natural infectious status of Angiostrongylus cantonensis in edible snail sampled from market in Shenzhen. 目的了解深圳市市场流通的食用螺广州管圆线虫自然感染情况。
- Objective To know the distrbution of natural infectious foci and the intermediate hosts of Angiostrongylus cantonenesis in Hunan province. 摘要目的了解湖南省广州管圆线虫中间宿主及广州管圆线虫病自然疫源地的分布情况。
- Entomophilous and nature infectious diseases were higher for type. 发病时间以6-9月为高峰；
- Objective To understand the species of free flea on indoor floor in natural infectious area of plague in Hepu County,Guangxi Region and offer basis for formulating control measures. 目的了解广西合浦县鼠疫自然疫源地室内地面游离蚤的种类、构成和季节消长,为制定鼠疫防制对策提供依据。
- Conclusions Natural infectious foci of A. cantonensis is found in the parcel areas of Hunan Province.It can't be ignored that A. cantonensis has latency danger to people's health of Hunan Province. 结论湖南省局部地区是广州管圆线虫病的自然疫源地，广州管圆线虫病对该省居民身体健康的潜在危害不容忽视。
- Natural infectious area of plague 鼠疫自然疫源地
- The epidemiology was sporadi c primarily and the outbreaks were usual.Entomophilous and nature infectious di seases were higher for type.Most of the outbreaks in the period of May to Se ptember. 针对学校突发公共卫生事件的处理与应对，卫生部与教育部已就食物中毒事件的处理及对策制定了相关规定，尤其是责任追究制的实施，必将使学校食物中毒事件明显减少。
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- Our motherland flows with natural resources. 我们祖国蕴藏着丰富的天然资源。
- Events took their natural course. 事态依自然进程发展。
- She has a natural wave in her hair. 她的头发自然卷曲。
- Magnetism is a natural phenomenon. 磁力是一种自然现象。
- It is difficult to be natural when one is tense. 人在紧张的时候很难泰然自若。
- The egoism of an artist sometimes seem natural. 艺术家的自负有时看起来是自然的。
- They used only natural pigments to dye the wool. 他们只用天然颜料染毛织品。
- Children are natural exhibitionists. 儿童天生喜欢自我表现。
- Everything we used was made from natural materials. 我们所用的一切都是由天然材料做成的。
