quartz
quartz 英 [kwɔːts] 美 [kwɔrts]
n. 石英
名词复数:quartzs
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- n. 石英
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1. The quartz watch keeps good time.
石英表走时准。
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2. 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。
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3. A quartz wristwatch, by comparison, is sensitive to about a millionth of a degree, or 10-6 degrees.
相比而言，一个石英手表敏感度大概是一度的百万分之一，或是10-6度。
- quartz (n.) "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."
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