极坐标系 Save Sign in to save words Traditional (Taiwan): 極座標系 jízuòbiāoxì ㄐㄧˊ ㄗㄨㄛˋ ㄅㄧㄠ ㄒㄧˋ polar coordinate system math. Character by character 极(jí)extremely 坐(zuò)surname Zuo 标(biāo)mark 系(xì)connect A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0