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为掌握客车灭鼠后鼠密度回升状况,我们在客车带鼠率降至3%以下后,分别于第2、4、6个月进行了鼠密度前瞻性调查。现将结果报告如下:
In order to understand the rat density recovery after the bus rodent control, we conducted a prospective investigation of rat density at the 2nd, 4th and 6th month after the rodent rate of the bus dropped below 3%. The results reported below: