Sans wheels, which were needed for last year’s simulations to the surface of the moon, the vehicle could be transformed for asteroid exploration by mounting it on a flying platform, says NASA.

美宇航局说，这个太空探索车是去年月球表面太空模拟的必备工具。 这一工具可以改造一下，安装在一个飞行平台来适应小行星探索。

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Wire buffing wheels create special safety problems because they throw off flying fragments including wire.

有线抛光轮存在特殊的安全问题，因为它们会甩出包含线在内的碎片。

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Then, four days later, flying touch-and-go landings in a Lockheed T-33 Shooting Star with Chuck Yeager, the wheels became stuck in a lake bed made wet by recent rain where they had to await rescue.

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