1, a filter for transmitting signals. Filtering and amplification of the received signal. Power supply and communication of ASC/TMA and RET. Monitor antenna hardware.

2. Fuel oil FUtures trading code fu.

3. The latest buzzwords on the Internet. Fu takes the homonym of "feeling". It means: feeling, cute, etc. It first appeared in the post bar, and later became popular in major forums.

4. Volt is the symbol of fuse.

5, nattokinase active unit.