羅經差compasserrorbycelo-observation: 天測羅經差compassed the earth: 環繞地球compasserrors: 羅經差羅經誤差; 羅經誤差compassdirection: 羅經方位compasses: 分規; 兩腳規,圓規; 指南針下載手機詞典可隨時隨地查詞查翻譯