Longspan transmission line system is the lifeline project as the electric powe's carrier.
大跨越输电塔线体系作为高压电能输送的载体，是重要的生命线工程。
2
Continue rigid frame bridge is more and more widely used because of its high strength, lightful line type, convenient and fast construction, long-span ability.
该桥型以强度高、线形明快、施工简便快捷、跨越能力强的优势在大跨度桥梁中得到了越来越广泛的应用。
3
Sliding table adopt advanced difference-moving ball straight-line guiding rail precise cylinder straight-line guiding rail, precision is high, life span is long.