electronic scanner短语¹⁴⁴⁹⁷²⁺² 基本英英近义反义例句 电子扫描器 Noun: a radio receiver that moves automatically across some selected range of frequencies looking for some signal or condition;
they used scanners to monitor police radio channels
近义词scanner扫描机 The identity cards are examined by anelectronic scanner.用电子扫描器来检验身分证。