缆索铁道永久导轨用金属材料 Materials of metal for funicular railway permanent ways 铁路道叉 Railway points 铁路货车金属载量规杆 Loading gauge rods, of metal, for railway waggons ..
The design and manufacturing key points of internal shielded railway digital signal cable are introduced, and combining with production practice, the quality control measures are discussed.
主要介绍了内屏蔽铁路数字信号电缆的设计、生产工艺要点，并结合生产实践讨论了如何进行质量控制。
2
Special points of the project cost of railway satellite communication are analyzed, and how to control the cost in various links of project implementation is discussed.
详细分析铁路卫星通信工程费用的特殊点，探讨了在项目实施的各个环节如何控制成本。
3
Through the introduction of the design option of Tangjia Bridge Road (S) under-railway tunnel the paper points out the importance of drainage and consolidation design of tunnels in coastal area.