crystal - controlled oscillator造句

例句与造句

1. PA C-MAC's Quartz Crystal Inc ., Mechanicsburg, won a $ 96, 000 contract from the Defense Supply Center, Columbus, Ohio, to provide crystal-controlled oscillators.
2. Cady held more than 50 patents, and was the inventor of the crystal-controlled oscillator, the highly selective narrow-band crystal filter, one of the principal theorists of the ferroelectricity in crystals, and a historian of the science of piezoelectric crystals.
3. It's difficult to find crystal - controlled oscillator in a sentence. 用crystal - controlled oscillator造句挺难的