Already dendrimer devices have yielded very high luminous efficiencies (more than 50 candelas per ampere and 40 lumens per watt).是什么意思_Already dendrimer devices have yielded very high luminous efficiencies (more than 50 candelas per ampere and 40 lumens per watt).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句