change-over system的用法和樣例：
例句
- To popularize the European Credit Transfer System was an important action for constructing the common European higher education system.
實行歐洲學分轉換系統是歐洲高等教育空間一體化建設的重要舉措。 - The state-space model is one of the effective mathematical modelsto study the interaction between ocean waves and the wave energy conversion system.
狀態空間模型是研究海洋波能轉換系統相互作用的一種有效數學模型。
