The heat transfer performance of the boiler gas in a plastic longitudinal flow spiral heat exchanger was investigated experimentally.
实验研究了锅炉烟气在轴流式塑料螺旋板空气预热器中的传热特性。
Water transferred directly and quickly through the scar. From the scar through to the pericarp and ending at the apex, there was a longitudinal passage of water flow.
水分由维管束直接迅速地进入果脐，并沿果皮不分化层中的维管束到达果皮各部分，形成一个水分传输的纵向系统。
A generalized curved conduit flow experiment was employed to obtain the longitudinal velocity parameters by adopting the ADV to measure the 3d flow velocity data.
运用弯道水流概化模型试验，利用先进的ADV进行了三维流速数据的采集，从中提取了纵向流速参数。
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