| 释义 |
extremely high frequency 释义 极高频 例句 1·Ultrasonic devices use sound waves of extremely high frequency . 音波装置使用极高频率的声波。 2·The wafer is a piezoelectric resonator, expanding and contracting in response to electrical voltages at a precise, extremely high frequency . 该晶片是一个压电谐振器,以精准而极高的频率对电压作出反馈,进行放大和收缩。 3·The seismicity in yunnan region in the20th century occupies a front place in Chinese mainland in extremely high frequency strength and hazard rate. 20世纪云南地区地震活动以极高的频度、强度和成灾率而位居我国大陆之前列。
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