The Intellectual Property attache, Economic Section, US Embassy.
美国大使馆经济处知识产权专员。
Type steels are a kind of light economic section shaped steel with the perpendicular among thin-walls, girths and web plates.
型钢是一种轻型薄壁、翼缘与腹板垂直的经济断面型钢。
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.
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。
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