paramagnetic resonance spectrum顺磁共振: paramagnetic resonance波谱: spectrum电子顺磁共振波谱: electron paramagnetic resonance spectrum; epr spectrum顺磁共振波谱仪: epr spectrometer变频电子顺磁共振波谱仪: variable frequency epr spectrometer下载手机词典可随时随地查词查翻译