noun
: the main pipe of a pressure brake system extending the entire length of the train and connecting the manual and the automatic actuating devices on individual vehicles — called also train line ; see air brake
noun
: the main pipe of a pressure brake system extending the entire length of the train and connecting the manual and the automatic actuating devices on individual vehicles — called also train line ; see air brake
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012