... 4、 Circuits & Electronics电路与电子产品 5、 Structures & Materials结构与材料 6、 Engineering Design & Project Engineering工程设计与工程工程 ...
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路面结构与材料是修筑沙漠公路的关键。
The pavement structure and material are the key techniques for desert highway construction.
从道床厚度、道床结构与材料、排水三方面论述了混凝土宽枕道床的设计；
Design recommendations are given for three aspects of a broad sleeper railroad. including structure, materials, and drainage.
研究发现，熔接痕的结构与材料配方、挤出机机头模具及加工工艺参数均有关系。
The research showed that the structure of weld mark was connected with the material formulation, die mould of extrusion machine and parameters of processing technology.
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