| 单词 | perpetual calendar |
| 释义 | perpetual calendar (once / 288276 pages) n WORD FAMILY perpetual calendar: perpetual calendars USAGE EXAMPLESAll those mechanical features — perpetual calendars, self-winding mechanisms — were the transformative high tech of their day. New York Times(Jun 03, 2015) The Retrograde Perpetual Calendar watch is a double-sided mechanical wok of art that is easily convertible from wristwatch to table clock and pocket watch. Forbes(May 26, 2015) How about a complicated piece, for instance, a tourbillon, perpetual calendar or repeater? Forbes(Jan 12, 2015) n a chart or mechanical device that indicates the days of the week corresponding to any given date over a long period of years Hyper calendar a tabular array of the days (usually for one year) |
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