短語(yǔ)詞組短語(yǔ)Base tangent length G 公法線長(zhǎng)度control tangent length 控制切線長(zhǎng)Free tangent length method 任意切線長(zhǎng)支距法base tangent length deviation 公法線偏差Base tangent length 公法線長(zhǎng)度tangent length west bank 切線長(zhǎng)度Length tangent 切線長(zhǎng)度tangent vector with constant length 定長(zhǎng)切向量tangent plane arc -length method 切面弧長(zhǎng)法 返回 tangent length