1) Diesel engine technology
Found on
https://www.crosswordclues.com/clue/glowplug
A glowplug (alternatively spelled as glow plug or glow-plug) is a heating device used to aid starting diesel engines. In cold weather, high speed diesel engines can be difficult to start because the mass of the cylinder block and cylinder head absorb the heat of compression, preventing ignition due to the higher surface-to-volume ratio. Pre-chambe...
Found on
http://en.wikipedia.org/wiki/Glowplug
No exact match found.
