single beam eotrophotometersingle beam spectrophotometersingle-beam ectrophotometersingle-beam spectrophotometer单: singular number fate; destin ...光束: light beam a surname分光: spectral; beam split光度计: photometer; photometric rece ...双光束分光光度计: double beam ectrophotometer; double beam spectrophotometer; double-beam spectrophotometer; doublem-beam spectrophotometer; dual beam spectrophotometer下载手机词典可随时随地查词查翻译