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利用简易环流回风管进行逆向环流熏蒸 ,能有效地解决膜下环流因回风不均而出现熏蒸死角这一难题。从试验结果看 ,该方法熏蒸效果好 ,费用低且操作简便。
The use of a simple loop back to reverse circulation fumigation fumigation, can effectively solve the membrane under the loop due to uneven return fumigation of the problem of this corner. From the test results, the method fumigation effect, low cost and easy to operate.