He has settled here for a long span of time.
他已经在这儿定居很长一段时间了。
Long span 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。
Master long-span production line design, manufacturing technology, reliable and safe equipment, special control system.
掌握大跨度生产线设计、制造技术，设备安全可靠；专用控制系统。
Master long-span production line design, manufacturing technology, reliable and safe equipment, special control system.
掌握大跨度生产线设计、制造技术，设备安全可靠；专用控制系统。
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