OASIS Concept of Operation -- mine countermeasure.jpg
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OASIS Concept of Operation mine countermeasure, Naval mine countermeasures
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OASIS Concept of Operation mine countermeasure, OASIS Concept of Operation
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OASIS 鉱山作戦のコンセプト、海軍機雷対策
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鉱山対策のOASIS概念、OASIS運用構想
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countermeasure magnetic mine defense technical information center