| 单词 | pallet stone |
| 释义 | > as lemmaspallet stone pallet stone n. Clockmaking a jewel or similar hard stone forming the surface of a pallet (sense 2). ΚΠ 1873 Amer. Cycl. IV. 706/1 The polishing of the leaves of pinions..and the grinding of the faces of the pallet stones to their proper angles. 1909 Webster's New Internat. Dict. Eng. Lang. Add. Pallet stone, a hard stone or jewel forming the rubbing face of a pallet to diminish friction and reduce wear. 1993 Amer. Heritage Nov. 34/2 Hard, smooth, and corrosion-resistant, jewels are useful materials for bushings at the ends of pivots and pallet stones on the escapement mechanism. < as lemmas |
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