swept-frequency ectrum analyzerswept-frequency spectrum analyzer扫描: scan; scanning; scansion; sw ...频谱分析: spectrum analysis; frequency ...仪: appearance; bearing频谱分析仪: analytical spectrometer; analyzer, spectrum; frequency spectrum analyser; frequency spectrum analyzer; frequency-analysis; spectroanalyzer; spectrum analyzer射频谱分析仪: rf spectrum analyzer下载手机词典可随时随地查词查翻译