| |||
bell | |||
alarm bell | |||
signal bell | |||
annunciator bell; call bell; jingle bell; signal hammer; signal hell | |||
| |||
call bell |
信 号铃 : 40 phrases in 9 subjects |
Communications | 2 |
Electronics | 3 |
General | 1 |
Information technology | 2 |
Metallurgy | 2 |
Oil / petroleum | 1 |
Shipbuilding | 1 |
Technology | 22 |
Telecommunications | 6 |