in or ready for use 实行的;使用的 the new laboratory is fully operational. 新实验室已完全投入使用。 ■of or relating to the routine functioning and activities of a business or organization 日常业务的 the coffee bar's initial operational costs. 咖啡吧最初的日常经营成本。 ■engaged in or relating to active operations of the armed forces, police, or emergency services 执行军事行动的 an operational fighter squadron. 执行军事行动的战斗机中队。 ■(Philosophy)of, relating to, or in accordance with operationalism (哲)操作论的,操作主义的