“ring jewel”的概念、定义、翻译、参考文献-科学参考

单词	ring jewel
释义	ring jewel [`riŋ ´jül] ^{DESIGN ENGINEERING} A type of jewel used as a pivot bearing in a time-keeping device, gyro, or instrument.
随便看	simple pit simple protein simple random samples simple results simple ring simple root simple salt simple shear simple sound source simple spit simple stomach simple strain simple tone simple tubular gland simple twin simple valley simplex simplex channel simplex concrete pile simplex machine simplex method simplex pump simplex structure simplex transmission thermovac evaporator

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