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2017-08-05View Original

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应用化学相关知识,包括(分析化学,物理化学,化工原理),特此推出(每日一题)活动,回复即可查看。为鼓励大家持续的参与!参与即有3财富奖励!答对可获得另外5财富奖励。希望大家积极参与,共同学*,共同进步!!! 水蒸气在一个外径为25mm,长为2.5m的水平管外冷凝,若外径增大一倍,则冷凝传热系数为原来的________。 A.0.941 B.0.841 C.0.741 D.0.641 此题答对加10个财富,周末福利。 B
Reply #22017-08-05
水蒸气在一个外径为25mm,长为2.5m的水平管外冷凝,若外径增大一倍,则冷凝传热系数为原来的___B_____。 A.0.941 B.0.841 C.0.741 D.0.641

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