Assertion: engine's exhaust | /r/HasProperty | constant
Facets:
value: fairly
type: DEGREE
value: always
type: TEMPORAL
value: ideally
type: DEGREE
Source sentences:
text: However, as one and the same valve usually controls both steam flows, a short cutoff at admission adversely affects the exhaust and compression periods which should ideally always be kept fairly constant; if the exhaust event is too brief, the totality of the exhaust steam cannot evacuate the cylinder, choking it and giving excessive compression ("kick back").