frequency scanningrate of sca ingrate of scanningscan frequencyscan ratescanning frequencyscanning ratesweep frequencysweep ratesweepfrequency扫描: scan; scanning; scansion; sw ...频率: frequency; rate场扫描频率: field scanning frequency; field-scanning frequency扫描频率 行速: scanningfrequency线扫描频率: line scanning frequency下载手机词典可随时随地查词查翻译