reference unit的用法和樣例：
例句
- The paper offers a reference for designing the rocket launcher.
本報告為火箭發(fā)射裝置設計提供了參考。 - The video decoding method and device can greatly lower storage space needed by the reference frame at the time of decoding.
采用本發(fā)明提供的視頻解碼方法及裝置，可以大大降低解碼時(shí)參考幀所需占用的存儲空間。
