单词	允许替代品
释义	允许替代品Allow Substitutions
随便看	digital switched network digital switched network，dsn digital switcher digital switching digital switching devices digital switching modular architecture digital switching system digital switching system {=dss} digital switchover digital switchover of public service programme digital-synchro converter digital synchronization digital synchronometer digital synovial sheath digital synthesizer digital system digital system bandwidth digital system cross-connect switch digital system fault diagnosis digital system fault tolerance digital system impairment digital system processor digital systems digital systems products digital system testing