external cavity klystron
external circuit
external command
external current
external database
external declaration
External deficit
external (device) address
External diseconomy
external disk drive
External economies & diseconomies of scale
External economy
external environment
External finance
External financial limits
External growth
external impedance
external interrupt
External labour market
external load circuit
external memory
external procedure
external reference
external register
External reserve
external resistance
external storage
external symbol
external table
externalise