Railroad car is single section car, so microcomputer network system adopts two-stage control, does not have to adopt intricate Train-Bus that adopted by organize into groups car.
有轨电车为单节车辆，微机网络系统采用二级控制，不必采用编组运行车辆所采用的较复杂的列车总线。
With the relative water consumption of each growing stage as input and relative crop yield output, a BP artificial neural network structure containing a single hidden layer is established.
将各生育阶段的耗水量作为输入，将作物单产作为输出，构建了具有1个隐含单元层的BP神经网络结构。
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