This research focusses on the index system establishment of multi-factors which sets the factors of the same measurement in the same period in a fixed base period.是什么意思_This research focusses on the index system establishment of multi-factors which sets the factors of the same measurement in the same period in a fixed base period.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句