Public Address systems (PA systems) are commonly used in American malls, airports and grocery stores.
公共广播系统在美国的商场、机场、和杂货店普遍使用。
Inside, it's typical party-bus fare, with LCD screens, DVD players and PA systems, along with all the required safety gear.
内，这是典型的党的巴士票价，与液晶显示屏，DVD播放机和扩音系统，以及所有必要的安全装置。
Combo amplifiers for bass, guitars, keyboards, electronic drums and PA systems. Please reply with full specifications, pictures.
求购用于贝斯，吉他，键盘，电子鼓，扩音系统的组合放大器。请回复详细规格和图片。
Rupert Chapman, an IT risk management consultant at PA Consulting, said: "They've found that the systems were not up for the job and there is a real case for change."
PAConsulting的IT风险管理顾问鲁珀特•查普曼表示：“他们发现这些系统无法胜任工作，确实需要改变。”
The physicochemical and biological two stages treatment systems was imported to Pa- per Mill A of Guangzhou Victorgo Industrial Co. Ltd. from YIT, Finland.
广州威达高实业有限公司A厂引进芬兰YIT公司的物化一生物二级废水处理系统。
Power amplifiers (PA) used in 3G wireless communication systems based on spread spectrum techniques must exhibit exceptional linearity.
而基于扩频技术的第三代无线通信系统中的功率放大器必须要有很好的线性性能。
Using 4-axis CNC systems PA German, friendly man-machine interface, the device easy to operate.
采用德国原装PA四轴数控系统，友好人机界面，设备操作简单。
Using 4-axis CNC systems PA German, friendly man-machine interface, the device easy to operate.
采用德国原装PA四轴数控系统，友好人机界面，设备操作简单。
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