Miners wore a helmet as a guard against falling rocks.

矿工钢盔, 护落下的岩石。

The final exercise pitted a counterterrorism squad against an escaping vehicle of balaclava-clad men who holed up in a concrete building.

最后一项是针对藏在混凝土工事中的一辆满钢盔的武装员的装甲车暴行动。