圓曲線起點 circular curve: 環(huán)路; 圓曲線;單曲線;圓弧曲線spring curve: 彈簧曲線; 彈力曲線spring of curve: 曲線起點circular curve data: 圓曲線要素circular curve location: 圓曲線測設(shè)下載手機詞典可隨時隨地查詞查翻譯