"silicon dioxide," 1756, from German Quarz, Zwarc "rock crystal," from Middle High German twarc, probably from a West Slavic source, compare Czech tvrdy, Polish twardy "quartz," noun uses of an adjective meaning "hard," from Old Church Slavonic tvrudu "hard," from Proto-Slavic *tvrd-, from PIE *(s)twer- "to grasp, hold; hard."
实用例句
1. The prospectors have discovered such minerals as calcite, quartz and asbestos here.
探矿人员在这里发现了方解石 、 石英、石棉等矿藏.
来自《简明英汉词典》
2. There is a great deal quartz in those mountains.
那些山里蕴藏着大量石英.
来自《简明英汉词典》
3. To this class of substance belong mica, porcelain, quartz, glass, wood, etc.
属于这类物质的有云母 、 瓷器 、 石英 、 玻璃 、 木材等等.
来自《现代汉英综合大词典》
4. The quartz watch keeps good time.
石英表走时准.
来自《现代汉英综合大词典》
5. Quartz timepieces are very accurate, to a minute or two per year.
