农民为防止春天庄稼霜冻在地里熏烟是为什么
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![农民为防止春天庄稼霜冻在地里熏烟是为什么](/uploads/image/z/4802395-67-5.jpg?t=%E5%86%9C%E6%B0%91%E4%B8%BA%E9%98%B2%E6%AD%A2%E6%98%A5%E5%A4%A9%E5%BA%84%E7%A8%BC%E9%9C%9C%E5%86%BB%E5%9C%A8%E5%9C%B0%E9%87%8C%E7%86%8F%E7%83%9F%E6%98%AF%E4%B8%BA%E4%BB%80%E4%B9%88)
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