double-beam spectrometer双束: two-beam自动双束谱仪, 自动双束分光计: automatic double spectrometer光束分光计: beam spectrometer分子束分光计: molecular beam spectrometer双束分光光度计: double beam spectrophotometer; double-beam spectrophotometer; double-beam system下载手机词典可随时随地查词查翻译
