perpetual calendar
perpetual calendar
perpet′ual cal′endar
n.
| Noun | 1. | perpetual calendar - a chart or mechanical device that indicates the days of the week corresponding to any given date over a long period of years | 
| 单词 | perpetual calendar | |||
| 释义 | perpetual calendarperpetual calendarperpet′ual cal′endarn. 
 perpetual calendarperpetual calendar[pər′pech·ə·wəl ′kal·ən·dər]perpetual calendar
 Words related to perpetual calendar
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