“SI”是“Solar Inertial”的缩写，意思是“太阳惯性”

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“SIA”是“Shuttle Induced Atmosphere”的缩写，意思是“

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“SIA”是“Software Impact Assessment”的缩写，意思是“

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“SIA”是“Solar Inertial Attitude”的缩写，意思是“太阳

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“SIAC”是“Safety Issue Assessment Center”的缩写，意

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“SIAP”是“System Integrity Assurance Program”的缩写

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“SID”是“Shuttle Integration Device”的缩写，意思是“

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“SID”是“Simulator Interface Devices”的缩写，意思是“

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“SID”是“Standard Interface Document”的缩写，意思是“

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“SID”是“System Interface Document”的缩写，意思是“系

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