The U. S. Air Force also will operate an F-35 variant, the a model, a conventional takeoff-and-landing fighter.

美国空军也将经营新的F - 35的变种A型，一种传统的起飞和着陆战斗机。

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While the Predator started as a USAF program, the U. S. Army selected a variant of the Predator called Sky Warrior for its own unmanned aircraft system (UAS) requirement.

虽然捕食者无人机作为美国空军一个项目启用，但美国陆军也选择了捕食者的改进型称为空中勇士，以满足陆军无人机系统(uas)的需求。

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The U. S. Marine Corps F-35B short-take off vertical landing (STOVL) variant of the Joint Strike Fighter (JSF) will begin sea trials next week, the service's top aviation officer said.

一位美国海军陆战队空军高级军官称，美军陆战队联合打击战机的F-35B垂直短距起降战机的改进型将于下周进行海上试飞。

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The U. S. Marine Corps F-35B short-take off vertical landing (STOVL) variant of the Joint Strike Fighter (JSF) will begin sea trials next week, the service's top aviation officer said.

一位美国海军陆战队空军高级军官称，美军陆战队联合打击战机的F-35B垂直短距起降战机的改进型将于下周进行海上试飞。

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