Using lightweight prefabricated materials allowed construction workers to avoid using heavy construction equipment, and the bridge took only a week to install.

现代竹桥用的是轻质的预制材料，建筑工人也能避免使用重型的施工机械了。这座桥一个星期就安装好了。

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Supervise, co-ordinate and schedule the activities of workers who operate cranes and construction, paving, drilling, railway maintenance and other similar heavy equipment.

监督，协调和统筹安排操作起重机和施工，摊铺，钻井，铁路维护及其他类似的重型设备工人的活动。

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Fit and assemble prefabricated metal parts to build heavy industrial machinery and equipment such as construction, farming, and processing machinery, railway vehicles and aircraft engines.

打磨和组装预制金属零件来打造重型工业机械和设备，如建筑，养殖，加工机械，铁路车辆和飞机发动机。

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Bin Laden also helped import heavy construction equipment used to dig tunnels and build roads.

WSJ: Bin Laden Was Nurtured in Ease, Destined for Infamy

You can increase the number of jobs by outlawing heavy construction equipment and requiring construction workers to use shovels.

FORBES: Jobs and Public Policy

We can create new jobs by replacing heavy construction equipment with shovels and then replacing the shovels with spoons.

FORBES: The FCC, Jobs And Rainbow Stew