| 单词 | centre arbor |
| 释义 | > as lemmascentre arbor centre arbor n. a spindle that is centrally situated as a part of a mechanism, esp. that used in clocks and watches to carry the minute hand; cf. centre wheel n. ΚΠ 1811 Encycl. Londinensis (new ed.) X. 337/2 The first wheel being placed on the centre or hour arbor that carries the minutes-hand. 1922 Pop. Sci. Monthly Dec. 36/1 The tool consists of a center arbor of cast aluminium on the circumference of which four honing stones of fine grain are radially mounted. 2009 B. Jobe et al. Harbor & Home 261/1 It displays the year in the center of the lunette; the day of the month, which is read on a small dial just above the center arbor; and the movements of the sun and moon. < as lemmas |
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