英语词典
correctly arranging a concrete base transverse adjusting component and connecting the component with a switch tie truss reinforcement bar;
混凝土底座横向调整件安放正确,并与岔枕桁架钢筋连接;
互联网摘选
technology of replacing vertical bolts with anchorage in concrete switch tie turnouts of existing railway lines
既有线混凝土岔枕道岔立螺栓改锚技术
structural characteristics and connection of concrete switch tie turnout
混凝土岔枕道岔的结构特点及连接
Application bus tie spare source automatic switch in NanChang gird
母联备自投在南昌电网的应用
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