- digital infrastructure
- digital ink
- digital ink-jet printing
- digital ink-jet printing machine
- digital input
- digital instrument with 5 and a half above
- digital instrument with 5 and a half below (including portable)
- digital integral installation
- Digital Interface
- digital intermediate
- digitalization of film and television industry
- digitalized construction
- digitalized design
- digitalized disaster prevention
- digitalized engineering
- digitalized operation and maintenance
- digital land
- digital landscape model
- digital launching process
- digital learning resources
- digital library
- digital library framework
- Digital Library Promotion Project
- digital library resources
- digital library system