短語詞組短語elliptic quadratic surface [數(shù)]橢圓型二次曲面elliptic contact surface 橢圓接觸面elliptic parabolic surface 橢圓拋物面elliptic cylindrical surface [數(shù)]橢圓柱面elliptic shearing surface 橢圓剪切面elliptic cylinder surface 橢圓柱面transcendental elliptic surface 超越橢圓曲面cylindrical elliptic surface 二次橢圓面elliptic rotating field surface 橢圓曲面 返回 elliptic surface