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在稳态变温传热中,流体的流向选择 时传热推动力最大,若加热蒸汽中存在不凝性气体,会使它的对流传热系数 α 值 。
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【简答题】Thomas Jefferson, the third president of the United States, was a good and tireless writer, and he wrote The Declaration of Independence. There is much we can learn from him. Here are some of the thin...
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