改良多圓錐投影 polyconic projection: 多圓錐投影conformal polyconic projection: 正形多圓錐投影map projection polyconic: 多圖錐投影map projection rectangular polyconic: 多圖錐鉅形投影modification polyconic projection: 改良多圓錐投影下載手機(jī)詞典可隨時隨地查詞查翻譯