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a. 內在的、國內的

內的、內部的

學術名詞

內部的：電力工程、醫學
內的：電力工程、獸醫學
內波：力學
內平衡系統：航空太空
內部摩擦：航空太空
內部防禦機制：動物學
內部：資訊
內配位：礦物學

英文釋義

happening or arising or located within some limits or especially surface
occurring within an institution or community
inside the country
located inward