第四章是本文的主体部分，从日常饮食、时节饮食、婚丧宴饮、灾荒年间的饮食、饮食禁忌五个方面来论述清代陕北地区的饮食状况。
As the main body of the paper, it illustrates in the aspects of daily diet, season-related diet, diet for wedding and funeral, diet during the starving time and dietary taboos available.
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