推算: calculate; reckon; reckoning ...经度: longitude估算经度: estimated longitude换算经度: reduced longitude积算经度: dead-reckoning longitude; longitude by account; longitude by dead reckoning六分仪(尤指在航海中用以推算经纬度者): sextant n经度: [地理学] longitude◇经度变化 variation of longitude; 经度测量 longitude determination推算: calculate; reckon; reckoning; prediction; calcu-lating 日食发生的时间可以推算出来。 the time when a solar eclipse will occur can be calculated.; 推算成本 imputed cost; 推算价 computed price; 推算价格 shadow price估算经济学: econometrics海岛算经: the sea island mathematical manual算经济帐: keep economic accounts算经济账: calculate financial cost; take cost into account孙子算经: sun tzu (mathematician)预算经费: budgetary resources; bydgetary resources周髀算经: zhou bi suan jing古经度: palaeolongitude经度，经线: long., long longitude经度；黄经: longitude经度差: d lo; difference in longitude; difference of longitude; longitude difference经度带: gore; longitude zone经度的: longitudinal经度法: longitude method经度分: minute of longitude经度了: longitudinal经度圈: circle of longitude
