单词	超声波发生器
释义	超声波发生器ultrasonic generator
随便看	direction of vibration direction of wave direction of wind direction on privacy and electronic communications direction operation direction operatoin direction opposite to that of traffics direction or vectorial angle direction parameter direction-- polar direction; polar direction protection direction range measurement system direction-range measurement system direction ratio direction rectifier direction relay direction rose directions directions-- bragg directions du corps direction selective sensing direction-selective sensing direction-sense directions for operation