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美国空军两架 B-2A“密苏里幽灵号”英国前沿部署期间在英格兰费尔福德空军基地。（Two B-2 Spirits are prepared for refueling by 509th and 131st Aircraft Maintenance Squadron crew chiefs at Royal Air Force Fairford, England, June 7, 2015. The B-2 provides the penetrating flexibility and effectiveness inherent in manned bombers. Its low-observable, or “stealth,” characteristics give it the unique ability to bypass an enemy’s most sophisticated defenses.）

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