The discus - sion of the effect on multiplex telephone communication by noise of FM satellite communication sys - tem and microwave relay communication system is also included.
专门讨论了调频制卫星通信和微波中继通信系统中的噪声对多路电话通信的影响。
Edison was riding high on the fame and profits from his gadgets for telegraph printing, multiplex telegraphy, telephone improvements and the brand-new phonograph.
当时爱迪生正因为他的电报印刷，复合电报，电话的改进和全新的留声机这些玩意儿扬名四方，并且进账颇多。
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