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U-2，RQ-4

U-2，RQ-4

U-2，RQ-4

U-2，RQ-4

2

According to the Air Force's Total Ownership Cost database , the U-2 cost $31 , 000 per flight hour while the RQ-4 sits at $35, 000.

按照美国空军全部拥有成本数据库，U-2 侦察机每个飞行小时的成本是 31000 美元，而 RQ-4 “全球鹰 ”的成本是 35000 美元。

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