Assertion: engine's speed | /r/HasProperty | low
Facets:
value: very
type: DEGREE
Source sentences:
text: However, at low speeds, these engines benefit from relatively high propulsive efficiency.
text: This causes the start of combustion to be out of synchronization with the crank angle, meaning that the engine would only run smoothly at one low-speed or load.   
text: That would work great for the engine as long as it ran at this very slow speed.