Organometallic chelates are seen as the best electroluminescent (EL) materials in OEFPD for their excellent EL properties.是什么意思_Organometallic chelates are seen as the best electroluminescent (EL) materials in OEFPD for their excellent EL properties.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句