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
- meteor
- meteor astronomy
- meteor brightness
- meteor burst transmission system
- meteor camera
- meteor echo
- meteor flare
- meteoric apex
- meteoric body
- meteoric collision
- meteoric dust
- meteoric hypothesis
- meteoric iron
- meteoric material
- meteoric matter
- meteoric seism
- meteoric shower
- meteoric stream
- meteoric swarm
- meteoric theory
- meteoric trail scattering of radio wave
- meteoric year
- meteorist
- meteorite
- meteorite astronomy