在市中心一座豪华住宅工地里拍摄的一组照片，工人在危险环境作业。
A luxury residential site in the city center where a group of photos taken, workers operating in hazardous environments.
橙色预警要求建筑工地停止作业，下令工厂临时将污染物排放水平减少30%。
That alert level requires a halt to construction work and orders factories to temporarily reduce emissions by 30%.
智能油耗仪适用于交通运输、电站以及厂矿、油田、建筑工地等分散作业的船舶和车辆管理工作的需要。
It is available for the transportation, electric power stations, factories, mines, oil fields, construction sites and so on.
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