Assertion: disc's groove | /r/HasProperty | cut
Facets:
value: by moving the head
type: MANNER
Source sentences:
text: It vacuums up the continuous thread of black lacquer as the grooves are cut.
text: The hot stylus momentarily softens the lacquer surface of the recording disc while the groove is being cut.
text: The spiraling grooves are cut by moving the head very slowly, across this bridge, usually by a type of screw feed.