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n.弯曲；弯曲部分；曲率；曲度 英英释义： curvature[ 'kə:vətʃə ]n.(medicine) a curving or bending; often abnormal"curvature of the spine"the rate of change (at a point) of the angle between a curve and a tangent to the curvethe property possessed by the curving of a line or
