钢盔

Miners wore a helmet as a guard against falling rocks.

矿工头戴, 防护落下岩石。

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一辆满载头戴武员开展防暴行动。