The paper expounds the specialities of laying cable or optical cable in paddy field along the railway in south of our country.
本文阐述了在我国南方铁路沿线水田中敷设光电缆的特点。
2
These provide theory basis for designing accuracy of optical spectrometer and are useful for laying out experiment scheme and analyzing experiment data.
这些工作为设计光谱测量仪器精度提供理论依据，对实验方案的制定和测量数据的分析有参考和启发作用。
3
The production line is mainly used in producing PVC, PE multiple-hole pipe. The produced pipes is widely used in layingoptical cable.