With a stronger steel casing and backup shock-resistant triggering mechanisms, the Perseus can smash through several metres of reinforced concrete and detonate only after it has gone into a bunker.

珀尔修斯拥有更坚固的钢铁外壳和备用的抗震性触发系统，能击穿数米厚的钢筋混凝土，并在进入掩体之后才引爆。

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And if all that isn't enough, the physical casing of the appliance is tamper resistant.

如果这些还不够的话，那么设备的物理外壳还能够防篡改。

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Petroleum and natural gas industries - Corrosion-resistant alloy seamless tubes for use as casing, tubing and coupling stock - Technical delivery conditions.

石油和天然气工业。作外壳、管道和连接材料用的耐腐蚀合金无缝管。交货技术条件。

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