The effect of technology of heat treatment on the micro-hardness and the phase composition of eom-plex boronisation layer on the O8 steel surface was studied.是什麼意思_The effect of technology of heat treatment on the micro-hardness and the phase composition of eom-plex boronisation layer on the O8 steel surface was studied.在線翻譯_英語_讀音_用法_例句