Source: NASA/Northrop Grumman Systems Corporation

来源：美国国家航空航天局/诺斯罗普格鲁曼公司

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This is the Northrop Grumman Lunar Lander Challenge.

但是本月上演的另一场重头戏却是诺思罗普·格鲁曼登月飞行器挑战赛。

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Raytheon is part of prime contractor Northrop Grumman's NPOESS team.

雷声公司是主合同商诺格NPOESS团队的一部分。

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By contrast, Los Angeles-based Northrop says its product lines do not overlap with those of Newport News.

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Lockheed Martin is the SBIRS prime contractor, with Northrop Grumman as the payload integrator.

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Lockheed competes with Boeing and Northrop Grumman (NOC) on defense department contracts, among others.

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