HLF

例句：

1. 1. The HLF is responsible for handling high-value transactions.
   HLF负责处理高价值交易。
2. 2. The HLF is a critical component of the network security system.
   HLF是网络安全系统的关键组成部分。
3. 3. The HLF is used to forward data between different systems.
   HLF用于在不同系统之间转发数据。