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| 응용 프로그램 수준 추가 기능 (A supplemental program that modifies or adds functionality to an existing program or application. The modifications are available to the application at all times) | |||
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| 응용 프로그램 수준 추가 기능 (A supplemental program that modifies or adds functionality to an existing program or application. The modifications are available to the application at all times) | |||
