网络与数据通信 有线网络 释文 data service unit/channel service unit, DSU/CSU 数据服务单元/通道服务单元
- quadrature of a circle
- quadrature of extrapolation
- quadrature of interpolation
- quadrature [phase] amplitude
- quadrature phase amplitude
- quadrature problem
- quadrature shift
- quadrature squeezed state
- quadrature sum
- quadrature-sum method
- quadraxial mounting
- quadraxial tracking frame
- quadraxial tracking system
- quadriamicable number
- quadric
- quadric cone
- quadric curve
- quadric cylinder
- quadricell
- quadric hypersurface
- quadricorrelator
- quadric parameter
- quadric [surface]
- quadric surface
- quadricycle