1, filtering of transmission signal. Main function: filter transmission signal. Filtering and amplification of the received signal. Power supply and communication of ASC/TMA and RET. Monitor antenna hardware.

2. Trading code: FU, the trading code of fuel oil in futures trading.

3. Internet vocabulary: the latest popular vocabulary on the Internet. Fu takes the homonym of "feeling". Meaning: have feelings; Cute and so on. It first appeared in the post bar, and later became popular in major forums.

4. Symbol name in electromechanical system: FU is the symbol of fuse.

5. Active unit: nattokinase active unit.

6. Hair follicle unit: Fu (hair follicle unit)-hair follicle, which is used as a unit to calculate the number of hair by hair transplantation technology in medicine. The hair transplant techniques derived from this entry, referred to as "FUE" and "FUT" for short, together with the emerging FD four-dimensional hair transplant technology, have become the peak of hair transplant technology.