n.合理化
=rationalization(美).
The maintenance, upkeep, checking, repair, upgrading, rationalisation and extension of plants complete the available services. 歐德通風(fēng)還提供多種服務(wù),包括保養(yǎng),維修,檢查,升級(jí),合理化改造及設(shè)備的拓展。