“1NCD”是“1st Naval Construction Division”的缩写，意

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“O”是“Contour Pattern”的缩写，意思是“等值线图”

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“O&I”是“Operations and Intelligence”的缩写，意思是“

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“OA”是“Objective Area”的缩写，意思是“客观区域”

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“OA”是“Operating Assembly”的缩写，意思是“工作组件”

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“OA”是“Operational Area”的缩写，意思是“作业区”

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“OA”是“Operations Aerology Shipboard METOC

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“OAE”是“Operational Area Evaluation”的缩写，意思是“

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“OAF”是“Operation ALLIED FORCE”的缩写，意思是“盟军

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“OAFME”是“Office of the Armed Forces Medical

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