短語詞組短語elliptic quadratic surface [數(shù)]橢圓型二次曲麪elliptic contact surface 橢圓接觸麪elliptic parabolic surface 橢圓拋物麪elliptic cylindrical surface [數(shù)]橢圓柱麪elliptic shearing surface 橢圓剪切麪elliptic cylinder surface 橢圓柱麪transcendental elliptic surface 超越橢圓曲麪cylindrical elliptic surface 二次橢圓麪elliptic rotating field surface 橢圓曲麪 返回 elliptic surface