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Relation: subclass

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ConstantQuantity331A ConstantQuantity is a PhysicalQuantity that has a constant value, e.g. 3 Meters and 5 Hou...^
    AngleMeasure2The value of an angle in a plane or in a solid.^
        PlaneAngleMeasure.The value of an angle in a plane.^
        SolidAngleMeasure.The value of an angle in a solid.^

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