Assertion: trombone's bore | /r/HasProperty | enlarged
Facets:
Source sentences:
text: As with developments in the other members of the Trombone family at the time, the bores were enlarged and bell flares were widened to give a more broad, darker tone.
text: Its tubing length of 9 feet (2.7 m) is identical to that of the tenor trombone, but it has a wider bore, a larger bell, and a larger mouthpiece.