公历最初是基于罗马的儒略历的。
The Christian calendar was originally based on the Julian calendar of the Romans.
将儒略日计数转为罗马儒略历。
The JDToJulian() function converts a Julian day count to a Julian calendar date.
那时儒略历对季节的偏差已到了11天。
By then the Julian calendar was out of sync with the seasons by 11 days.
到1582年,儒略历日期对季节出现了数天的不同步。
By 1582 the Julian calendar was out of sync with the seasons by several days.
古罗马用的阴历,于公元前年被儒略历取代。
The lunar calender in use in ancient Rome; replaced by the '.
它是以公元前46年的《儒略历法》为依据的。
It is based on 46 years BC, the "Julian calendar" as the basis.
大多数欧洲国家在格里高里历之前使用儒略历。
Most European countries used the Julian calendar prior to the Gregorian.
儒略历在公元前45年开始被使用,它是被凯撒大帝改良的罗马历。
The Julian calendar began in 45 BC as a reform of the Roman calendar by Julius Caesar.
儒略历将太阳年划为365.25天,闰年366天,每四年一次。
The Julian calendar approximated the mean tropical year as 365.25 days and proposed 366-day leap years for every one divisible by four.
我们现在一年分12月的做法始于约公元前45年的儒略历。
Our modern calendar system of 12 months started with the Julian calendar circa 45 B.C..
这种近似使儒略历准确工作了几百年,但是累计的误差也越来越大。
This approximation made the Julian calendar fairly accurate in tracking the annual seasons for several centuries. But eventually the approximation errors accumulated.
尤里乌斯·凯撒创建的儒略历准确计算出一年有365.25天,平均四年一个周期。
Instituted by Julius Caesar, the old calendar counted exactly 365.25 days a year, averaged over a four-year cycle.
根据罗马儒略历,春分、秋分以及四季每年提前11分钟出现,1500年后则提前至3月11日。
Using the Julian calendar, the spring and fall equinoxes and the seasons were arriving 11 minutes earlier each year. By 1500 the vernal equinox had fallen back to March 11.
根据罗马儒略历,春分、秋分以及四季每年提前11分钟出现,1500年后则提前至3月11日。
Using the Julian calendar, the spring and fall equinoxes and the seasons were arriving 11 minutes earlier each year. By 1500 the vernal equinox had fallen back to March 11.
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