“jewel”的概念、定义、翻译、参考文献-科学参考

单词	jewel
释义	jewel [jül] ^ENGINEERING 1. A bearing usually made of synthetic corundum and used in precision timekeeping devices, gyros, and other instruments. 2. A bearing lining of soft metal, used in railroad cars, for example.
随便看	diagnostics diagnostic subroutine diagnostic test diagnotor diagonal diagonal bond diagonal fault diagonal horn antenna diagonalize diagonal joint diagonally dominant matrix diagonal matrix diagonal pitch diagonal pliers diagonal stay diagram diagram factor diagram on the plane of the celestial equator diagram on the plane of the equinoctial diagravitropism diaheliotropism diakinesis diakoptics DIAL dial

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