题目内容：
加热炉的负压是怎样产生的？为什么在负压下操作？
参考答案：【答案仅供学习，请勿对照自行用药等】
问答题,简答题：加热炉的负压是怎样产生的？为什么在负压下操作？
- 题目分类：测井工考试
- 题目类型：问答题,简答题
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