Crossword Clue:

Like many ventilation systems

AnswerCrossword Clue
DUCTEDLike many ventilation systems
ANTISKIDLike many braking systems
ANTISKIDLike many automobile braking systems
UNIXModel for many operating systems
CDPLAYERPart of many stereo systems
ROMANLAWBasis of many countries' legal systems
ROMANLAWBasis of many modern legal systems.