(noun.) a signaling device that makes a buzzing sound.
整理:泰丝
双语例句
The buzzer, R, is maintained in rapid vibration by its independent auxiliary battery, B<1S>. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
In addition, there was a special transmitting device in the shape of a musical reed, or buzzer. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
In practice, this buzzer was continuously operated at high speed by a battery. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
The primary of the induction-coil is connected as shown, one end going to key K and the other to the buzzer circuit. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
In addition, there was a transmitting device in the shape of a musical reed, or buzzer. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
The equipment of an operator on a car was quite simple consisting merely of a small lap-board, on which were mounted the key, coil, and buzzer, leaving room for telegraph blanks. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
In practice, this buzzer was continuously operated at a speed of about five hundred vibrations per second by an auxiliary battery. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
The other side of the key is connected to the transmitting battery, while the opposite pole of this battery is connected in the buzzer circuit. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.