几秒钟的警报也能够挽救建筑地盘上的生命，例如让工人抓住钢梁或者把起重机移到较安全的位置。
A few seconds' warning could also save lives on construction sites, allowing, for example, workers to grip girders or move cranes to safer positions.
本课题首次将声发射监测技术应用于起重机梁的安全评价，从而扩展了声发射技术的应用领域。
This subject applies AET to safety assessment of crane beam first, so extend the application area of AET.
他们在戴好安全设施之后头朝下的从桥梁、高塔、起重机甚至是热气球上跳下。
After being well-equipped, jumpers leap headfirst from Bridges, towers, cranes, and even hot-air balloons.
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