Voyagers 1 and 2, which flew by the Saturnian system in 1980 and 1981, respectively, possessed more sensitive imaging systems and spectrometers.是什么意思_Voyagers 1 and 2, which flew by the Saturnian system in 1980 and 1981, respectively, possessed more sensitive imaging systems and spectrometers.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句