The results indicate that except T301,all these oil additives and CuS nanoparticles have synergy effect.This synergy effect can further reduce the fretting wear volume of friction pairs.是什么意思_The results indicate that except T301,all these oil additives and CuS nanoparticles have synergy effect.This synergy effect can further reduce the fretting wear volume of friction pairs.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句