【上位】 an organized structure for arranging or classifying; "he changed the arrangement of the topics"; "the facts were familiar but it was in the organization of them that he was original"; "he tried to understand their system of classification" 整理や分類のための整った構造。
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【下位】 a coordinate system for which the coordinates of a point are its distances from a set perpendicular lines that intersect at the origin of the system 点の座標が体系の起源と交差する一組の垂直な線からの距離である座標系。
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【下位】 the four-dimensional coordinate system (3 dimensions of space and 1 of time) in which physical events are located 物理的な事象が存在する4次元の座標系（3次元の空間と1つの時間）。
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a system of assumptions and standards that sanction behavior and give it meaning 行動を是認しそれに意味合いを与える前提と基準の体系。
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【上位】 a complex of methods or rules governing behavior; "they have to operate under a system they oppose"; "that language has a complex system for indicating gender" 行動を司る方法または規則の複合体。
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【下位】 the system of techniques or symbols serving as a means of expression (as in arts or crafts); "he introduced a wide vocabulary of techniques" 表現の手段として用いる技術や象徴の体系（芸術、技巧など）。
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