An assembly line system is an efficient way to manufacture cars.
产品装配线系统是一种有效的生产汽车的方法。
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。
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。
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