cup-jewel

基本解释

These cup jewels are chiefly applied to electronic meter, hot water meter, liquid measuring instrument and movement system of single-phase and triphase KHW meter.
供應說明： Cup jewels contain four types: spherical bearing; conical bearings; double cups on one face bearing; and single cup on double surfaces bearing.
A price of $1000 was set on the jewel thief's head.
懸賞1000美元抓住這個珠寶竊賊。
The duchess bedeck herself with jewel.
公爵夫人用珠寶裝扮自己。
He locked up the jewel before going away.
他在離開以前把珠寶鎖藏起來。
The book is the jewel of his collection.
這本書是他藏書中最珍貴的一本。