网络与数据通信 有线网络 释文 supervisory frame 监控帧
- photometric distance
- photometric double star
- photometric element
- photometric ellipticity
- photometric error
- photometric index
- photometric instrument
- photometric instruments
- photometric measurement
- photometric measurement method
- photometric method
- photometric night
- photometric orbit
- photometric paradox
- photometric parallax
- photometric period
- photometric phase
- photometric precision
- photometric redshift
- photometric scale
- photometric sequence
- photometric solution
- photometric standard
- photometric standard star
- photometric system