Valsts valodas centra izstrādātie transporta, infrastruktūras un sakaru termini

Konteksts: [..] Modified Z-count:the indication of the time of applicability for all the parameters in the message. Coding: the modified Z-count resets on the hour (xx:00), 20 minutes past the hour (xx:20) and 40 minutes past the hour (xx:40) referenced to GPS time. [..]
Avots: Annex 10 to the Convention on International Civil Aviation. Volume I. Radio navigation aids II.