实践证明，用这个方法生产效率和精度有所改进，人工工时和电缆成本有所降低。
It was found that by using this method of approach, working efficiency and cost of cable were reduced.
在过去几年中，铜价上升的幅度很大，导致铜芯电缆成本成倍增长，经济截面有减小的趋势，因此以前确定的经济截面是否仍满足载流量要求有待验证。
The ever-increasing copper price in the past several years has led to a significant increase of the cost of copper cables, and the economic section has hence decreased.
新海底光纤电缆的铺设将提升宽带，降低成本，刺激依赖技术的企业。
The arrival of new submarine fibre-optic cables will boost bandwidth, cut costs and stimulate businesses that rely on technology.
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