题目内容
Great Britain is both a parliamentary democracy and a constitutional democracy.
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It is no doubt that Great Britain is the oldest representative democracy in the world.
In Great Britain, the process of state-building has been one of evolution rather than revolution, in contrast to other countries like France and the United States.
在去湿设备中，将空气中的部分水汽除去，操作压力为101.3kPa，空气进口温度为20℃，空气中水汽分压为6.7kPa，出口处水汽分压为1.33kPa。试计算100m3湿空气所除去的水分量。
某干燥器的生产能力为700kg湿料/h，将湿物料由湿基含水量0.4（质量分数）干燥到湿基含水量0.05（质量分数）。空气的干球温度为20℃，相对湿度为40%，经预热器加热到100℃，进入干燥器，从干燥器排出时的相对湿度为60%。若空气在干燥器中为等焓过程，试求空气消耗量?操作压力为101.3kPa。
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