短語詞組短語cylindrical stream surface 圓柱流麪cylindrical elliptic surface 二次橢圓麪cylindrical slide surface 圓柱形滑動麪cylindrical E surface 圓柱麪cylindrical slip surface 圓柱狀滑動麪cylindrical gear surface durability 圓柱齒輪接觸強度cylindrical gear surface 圓柱形廓麪cylindrical supporting surface 圓柱支承麪cylindrical singularity surface 圓柱奇異麪 返回 cylindrical surface