切線性空間tangentplane projection: 切面投影tangentialwlzfrsen tangential hobbing: 切向滾銑tangentplanetoasurface: 曲面的切平面tangentialstressofthewind: 切向風(fēng)應(yīng)力tangents method: 切線法下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯