Assertion: engine's operation | /r/HasProperty | quiet
Facets:
Source sentences:
text: Stirling engines are capable of quiet operation and can use almost any heat source.
text: After a systematic comparison of various prime movers, the team decided to go forward with the Stirling engine, citing its quiet operation (both audibly and in terms of radio interference) and ability to run on a variety of heat sources (common lamp oil –