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
- nucleus ambiguus
- nucleus at neutron drip line
- nucleus at neutron drip-line
- nucleus at proton drip line
- nucleus at proton drip-line
- nucleus band
- nucleus ceruleus
- nucleus charge
- nucleus dorsalis
- nucleus growth
- nucleus mass
- nucleus model of atom
- nucleus-nucleus collision
- nucleus of abducent nerve
- nucleus of a set
- nucleus of comet
- nucleus of condensation
- nucleus of crystallization
- nucleus of galaxy
- nucleus of oculomotor nerve
- nucleus population
- nucleus pulposus
- nucleus transplantation
- nucleus vowel
- nuclide