“RAI”是“Roll Attitude Indicator”的缩写，意思是“侧倾

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“RAL”是“Responsibility Assignment List”的缩写，意思

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“RALPH”是“Reduction and Acquisition of Lunar Pulse

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“RALT”是“Radar ALTimeter”的缩写，意思是“雷达高度表”

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“RAM”是“Radar Absorptive Material”的缩写，意思是“雷

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“RAM”是“Random Access Memory”的缩写，意思是“随机存

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“RAM”是“Research and Applications Module”的缩写，意

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“RAM”是“Responsibility Assignment Matrix”的缩写，意

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“RAMA”是“Recap and Movement Authorization”的缩写，

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“RANC”是“Radar Absorption Noise and Clutter”的缩写

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