增量2项目是美军有史以来规模最大的研发工作，以增加B - 2武器系统杀伤力。
Increment 2 is the largest effort ever undertaken to augment the lethality of the B-2 weapon system.
有一幅有北极熊图像的告示牌告诫游客不要在没有武器的情况下外出，并建议游客使用杀伤力巨大的猎枪作为防身武器。
An image of a polar bear on a sign warns visitors never to leave the settlements unarmed, and recommends a high-powered hunting rifle as an appropriate weapon for self defence.
拨慢了核时钟最大的单一因素就是超级工厂病毒，这有史以来最具杀伤力的网络武器。
The biggest single factor in putting time on the nuclear clock appears to be Stuxnet, the most sophisticated cyberweapon ever deployed.
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