定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
定義： A shape quality inhering in a bearer by virtue of the bearer's being such that every part of the surface or the circumference is equidistant from the center.
