因为日历上变化的月份长度，所以对于时间间隔有两个不同的标准测量单位。

There are two different standard units of measure for intervals because of the varying month lengths in calendars.

youdao

总歼灭的每周被发布的单位是伟大的在一些方面，但他们由日历，没有游戏经验未口授。

Total Annihilation's weekly released units were great in some respects, but they were dictated by the calendar, not the game experience.

youdao

文件号应以日历年为编号单位，并以连续阿拉伯数字作为序列号从小至大表明发文先后顺序。

The files shall be numbered by calendar year plus serial number in the natural sequence of Arabic numerals representing order of release.

youdao

It turns out there are hundreds of Google calendars floating around campus, for student groups, for departments, for special events and the like.

在校园周围流动着许多的Google日历,有针对学生群的，有针对教学单位的，也有针对特殊事件的，等等。

哈佛公开课 - 计算机科学课程节选