[关键词]
[摘要]
采用不锈钢直管为实验管路，以π定理确定的准数方程为数学模型，通过实验建立了λ与Re之间的系列公式。
[Key word]
[Abstract]
A series of formulas about λ and Re were derived from experimental data using straight stainless steel tube as experimental object and the dimensionless equation determined by the π theorem as mathematics model.
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