Valsts valodas centra izstrādātie transporta, infrastruktūras un sakaru termini

Konteksts: [..] For ballasted tracks, it may be necessary to proceed by means of successive phases of pre-commercial service at reduced speed [..]
Avots: Commission Decision of 30 May 2002 concerning the technical specification for interoperability relating to the infrastructure subsystem of the trans-European high-speed rail system referred to in Article 6(1) of Council Directive 96/48/EC