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[". ["일일 문제 이론 기초2",

2019-10-31View Original

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判断题:.任何温物料只要与一定温度的空气相接触都能被干燥为绝干物料。   (   ) 答案:错误 提示:能阐述出解题过程的给予额外奖励,答案回复可见!
Reply #22019-10-31
判断为错误!原因是一定温度,这个词不够明确,范围太广!
Reply #32019-10-31
正确。将湿物料与一定状态的空气接触发生去湿,直到物料表面所产生的蒸汽压与空气中的水蒸气分压相等为止。此时物料中所含的水分称为该空气状态下物料的平衡水分。

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