the definition of region的用法和樣例：
例句
- There is no clear definition for the meaning of this word.
這個詞的含義缺少精確的界定。 - In the research of primary spectrum pyrometry, this paper discussed the definition problem of radiation temperature measurement area based on the measurement coordinates.
文章討論了譜色測溫系統研究中，基於測溫坐標系的輻射測溫區域的界定問題。
