A hydrogen arc discharge method for preparing SWNTs was developed in this research, by which high quality SWNTs can be synthesized in a large scale.是什么意思_A hydrogen arc discharge method for preparing SWNTs was developed in this research, by which high quality SWNTs can be synthesized in a large scale.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句