“S&A”是“Science and Application”的缩写，意思是“科学

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“S&AD”是“Science and Applications Directorate”的缩

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“S&E”是“Science and Engineering (MSFC Directorate)

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“S&H”是“Safety and Health”的缩写，意思是“安全与健康

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“S&MA”是“Safety and Mission Assurance”的缩写，意思

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“S/A”是“Safe and Arm”的缩写，意思是“安全与手臂”

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“S/A”是“Scheduled/Actual”的缩写，意思是“计划/实际”

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“S/A”是“Site Activation”的缩写，意思是“现场活化”

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“S/A”是“Spacecraft Adapter”的缩写，意思是“航天器适

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“S/A”是“Sub-Assembly”的缩写，意思是“子组件”

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