characteristic set的用法和樣例：
例句
- Transforming the input data into the set of features is called features extraction.
將輸入數據轉變?yōu)樘卣骷倪^(guò)程稱(chēng)為特征提取。 - Each feature filters for a specific characteristic or set of related characteristics on the inbound message.
每項功能均對入站郵件的特定特征或相關(guān)特征集進(jìn)行篩選。
