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电话交换系统
释义
电话交换系统
Encyclopedia
工学
〔通信自动化系统〕
释
telephone switching system
电话交换系统
使同一个电话网用户群中,任意两个或多个用户话机之间建立通信路径而暂时连接的设备集合。用以实现建筑物内电话等通信设备的使用。
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particle group
particle gun
particle hole
particle-hole
particle-hole interaction
particle-hole theory
particle horizon
particle identification
particle identification technique
particle image velocimetry
particle image velocimetry,PIV
particle in a box
particle-in-cell method
particle in cell simulation
particle-in-cell simulation
particle induced X-ray emission
particle-induced X-ray emission fluorescence analysis
particle induced X-ray emission, PIXE
particle in spherically symmetric potential
particle interaction
particle lifetime
particle line
particle mass spectrometry
particle mean diameter
particle mean free path
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