“SHD”是“Special Handling Designator”的缩写，意思是“

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“SHF”是“Super-High Frequency”的缩写，意思是“超高频”

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“SHORAD”是“Short-Range Air Defense”的缩写，意思是“

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“SHORADEZ”是“Short-Range Air Defense Engagement

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“SI”是“United States Strategic Command Strategic

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“SIA”是“Station of Initial Assignment”的缩写，意思

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“SIAGL”是“Survey Instrument Azimuth Gyroscope

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“SIC”是“Subject Identification Code”的缩写，意思是“

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“SICO”是“Sector Interface Control Officer”的缩写，

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“SICR”是“Specific Intelligence Collection

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