第二: second器: implement; utensil; ware预选器: line switch; pre selector; preselector; su criber selector; subscriber selector预选器, 预选程序: preselector预选器，预选装置: preselector第二预备费: second budget reserve第二预备金: second budget reserve第一预选器: first line switch分组预选器: group line switch区组预选器: group line switch射频预选器: r-f preselectors; rf preselector信息预选器: preselector of information预选器架: line-switch board中继预选器: relay preselector步进式预选器: stepping preselector插棒式预选器: plunger line switch旋转式预选器: rotary line switch预选器继电路: preselector relay射频空腔预选器: f-f cavity preselector; radio-frequency cavity preselector预选器；高频预先滤波器: preselector预选: allotting; forward selection; pre elect; pre selecting; pre selection; preconcentration; predictive selection; preelection; preliminary; preselection; primary election磁选器: lifting magnet; magnetic extracting device; magnetic pickup; magnetic selector; magneto-separator分选器: sorter receptacle风选器: air-float separator拣选器: sorter
