Assertion: engine | /r/AtLocation | operation
Facets:
Source sentences:
text: The pistons are short cylindrical parts which seal one end of the cylinder from the high pressure of the compressed air and combustion products and slide continuously within it while the engine is in operation.
text: While an engine is in operation, the crankshaft rotates continuously at a nearly constant speed.
text: Most engines use a fixed compression ratio, however a variable compression ratio engine is able to adjust the compression ratio while the engine is in operation.
text: Variable compression ratio is a technology to adjust the compression ratio of an internal combustion engine while the engine is in operation.