短語(yǔ)詞組短語(yǔ)polar r coordinate plane 極坐標(biāo)平面polar -coordinate metrology 極坐標(biāo)測(cè)量法polar r coordinate 極坐標(biāo)polar r coordinate system 極坐標(biāo)系統(tǒng)polar spherical coordinate 球面極坐標(biāo)a polar -coordinate 極坐標(biāo)rotating polar -coordinate 旋轉(zhuǎn)極坐標(biāo) 返回 polar coordinate