词汇	region mask
释义	region mask 区域掩模
随便看	radio telephone radio-telephone radiotelephone alarm radiotelephone alarm signal radiotelephone alarmsignal generator radiotelephone alarm signal generator radio telephone alarm signal generator radiotelephone beacon radio-telephone beam communication radiotelephone call radio telephone call radiotelephone cellular organization radiotelephone circuit radio-telephone circuit radiotelephone communication radio telephone communication radiotelephone distress frequency radio-telephone distress frequency radiotelephone distress frequency watch Radiotelephone distress frequency watch receive radiotelephones radio-telephones radiotelephone service radiotelephone signal procedure Radio Telephone Signal Procedure