Under a microscope, it resembles a stylized Navaho rug or the aerial view of a railroad switching yard.
在显微镜下看起来，它就像一幅繁花似锦的那伐鹤地毯，或是一幅铁路调车场的鸟瞰图。
A switching function method is proposed in this paper to describe the network of railway yard and construct a switching network model of geographical circuitry.
采用开关函数对铁路站场网络进行描述，构造出站场网络模型。
A switching function method is proposed in this paper to describe the network of railway yard and construct a switching network model of geographical circuitry.
采用开关函数对铁路站场网络进行描述，构造出站场网络模型。
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