A warning siren indicates workers must retreat from the blast site.

警报提醒工人必须撤离爆破区。

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Work on the construction site was at full blast.

建筑工地的工作已经全面展开。

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The set blast parameter, counting explosive charge as well as protective site plan have offered reference data for engineering blasting in similar conditions.

设定爆破参数，计算装药量及防护平面布置，为同类地质条件下的控制爆破开挖提供参考数据。

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Mr. Wilson added that 133 people were removed from an assisted-living facility near the blast site.

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Government members were meeting in the building near the blast site at the time.

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Concrete chunks, some the size of shopping carts, are strewn hundreds of yards away from the blast site.

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