这次考察时间较紧,限于调查范围,了解情况不够深入,又限于我们的认识和业务理论水平,因此,难以全面反映出实际情况,也可能存有错误。仅就这次调查所得进行整理,分为一般情况、草害及其防除、存在问题和初步建议等方面陈述如下: The time of the inspection was tight and limited to the scope of the investigation. The understanding of the situation was not deep enough and was limited to our understanding and business theory. Therefore, it is difficult to fully reflect the actual situation and there may be mistakes. Only the findings of this investigation are organized into the following general aspects: the case and its prevention and control, existing problems and preliminary suggestions as follows: