communications overhead的用法和樣例：
例句
- Loading data over the network adds extra communication overhead.
通過網路裝載數據將增加額外的通信開銷。 - Compared with the existing schemes, the proposed scheme can rekey real-time, provide a high level of security and reduce communication overhead at the same time.
與已有方案相比較，此方案能實時地更新組密鑰，有著更好的安全性並具有較小的通信開銷。
