maintainability 可维护性†，可维修度
软件工程 释文 maintainability 可维护性
- natural radiation belt
- natural radiation level
- natural radiation source
- natural radioactive decay series
- natural radioactive nuclide
- natural radioactivity
- natural radioactivity survey instrument
- natural radio background
- natural radioelement
- natural radioelements
- natural radionuclide
- natural range
- natural reactor
- natural reference frame
- natural reference system
- natural refrigerant
- natural region
- natural regionalization map
- natural regulation of population
- natural regulatory T cell，nTreg
- natural release
- natural remnant land
- natural reserve management
- natural resin
- natural resin coating