您要查找的是不是：
- DSSS信號DSSS signal
- DSSS／CDMA信號DSSS/CDMA signal
- 帳號account number
- 單號odd numbers
- 六號6th day of the month
- 求職信application letter
- 三號thirds
- 二號2nd day of the month
- 區號district number
- 分號semicolon
- 大號tuba
- LFM信號LFM signal
- ECG信號ECG
- AM信號AM signal
- E1信號E1 signal
- FM信號FM signal
- HCN信號HCN signal
- PSK信號PSK signal
- QAM信號QAM
- USB信號USB signal
