Methods The isothermal age hardening behaviour of an experimental75wt% Au,16wt% Ag,9wt% Cu alloy was studied by means of hardness test, X ray diffraction study.是什么意思_Methods The isothermal age hardening behaviour of an experimental75wt% Au,16wt% Ag,9wt% Cu alloy was studied by means of hardness test, X ray diffraction study.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句