Assertion: conduit's wall | /r/CapableOf | form the periphery of passageway
Facets:
Source sentences:
text: The inner face 698 of each of tubes 691 , 692 or 693 defines an internal passageway, 699 , having a cross sectional area that is roughly 120 degrees of arc, or ⅓ of the area of casing 694 , less the thickness of the walls forming the periphery of passageway 699 .