If you use headphones on your computer you may need to use the systemspeaker to produce a sound notification.
如果您使用耳机对您的电脑可能需要使用该系统扬声器产生声音通知。
2
Get complete interactive whiteboard functionality in a convenient package that integrates a large touch screen, projector and speakersystem.
将大型触摸屏、投影仪和扬声器系统合在一个便携包中,获得完整的交互式白板功能。
3
Several times a day he used the ship's speakersystem to tell the entire 5,000-member crew what specifically they were doing well, often recognizing teams and individuals.