1)low range switch,小范围开关2)switching range,开关范围3)high range switch,高范围开关4)two-way change-over selector,双极范围开关5)switching range,开关转换范围6)function/range switch,功能/范围开关
用法例句
The switching range of ultrasonic sensor is adjusted,which ensures the pureness outside the sensing range.
