《经济半小时》 20200214 基建里的“大力士”| Cctv财经

2020 24:45
Synopsis
本期节目主要内容: 架梁吊机是建设桥梁的神器,一次吊装1800吨钢梁。“巨无霸”挖泥船,海下能挖90米,仓容像个巨型游泳池。
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