DictionaryForumContacts

   English
Google | Forvo | +
calling-on signalstresses
railw. пригласительный сигнал
tech., railw. пригласительный сигнал (A calling-on signal is used to allow a loco or train to move into a block section or a track within station limits, which is or may be already be occupied by another train or loco. .)