Assertion: turbine's blade | /r/CapableOf | rotate the turbine
Facets:
value: slowly
type: MANNER
value: at 10–15 rpm
type: TEMPORAL
value: to warm the turbine
type: PURPOSE
Source sentences:
text: After first rotating the turbine by the turning gear, allowing time for the rotor to assume a straight plane (no bowing), then the turning gear is disengaged and steam is admitted to the turbine, first to the astern blades then to the ahead blades slowly rotating the turbine at 10–15 RPM (0.17–0.25 Hz) to slowly warm the turbine.