单词：saros
音标：['seәrɔs] ；
[天]沙罗周期(计18年又11.5天, 为日蚀和月蚀关系的反复周期)
n. A Chaldean astronomical period or cycle, the length of which
has been variously estimated from 3,600 years to 3,600 days, or a
little short of 10 years.
has been variously estimated from 3,600 years to 3,600 days, or a
little short of 10 years.
saros的用法和样例：
例句
用作名词(n.)
- Thus, the Saros is useful for organizing eclipses into families or series.因此，沙罗周期对将日食排序是相当有用的。