Noun
steam coming from a boiler at full pressure
Source: WordNetHeat from steam coils or gas flames is balanced with live steam or water sprays to control the temperature and humidity. Source: Internet
Control Coin-operated model train layout in Germany The first clockwork (spring-drive) and live steam locomotives ran until out of power, with no way for the operator to stop and restart the locomotive or vary its speed. Source: Internet
Hornby Railways produce live steam locomotives in 00, based on designs first arrived at by an amateur modeller. Source: Internet
The size of engines depends on the scale and can vary from convert tall for the largest ridable live steam scales such as 1:4, down to matchbox size for the smallest: Z-scale (1:220) or T scale (1:450). Source: Internet