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为了解溴氰菊酯喷洒蚊帐对按蚊密度和寿命的影响,我们于1991年在苍南县进行了有关观察。现报告如下: 材料和方法
In order to understand the impact of deltamethrin spray mosquito nets on the density and life expectancy of anopheles, we carried out the observation in Cangnan County in 1991. The report is as follows: Materials and methods