Assertion: wing surface | /r/HasProperty | convex
Facets:
value: slightly
type: DEGREE
value: preferably
type: DEGREE
Source sentences:
text: Although theupper wing surface and the under surface of the wedge portion are preferably slightly convex with respect to the generally linear leading edge, these surfaces for practical purposes may be considered planar.
text: 5, wherein the upper and lower wing surfaces are slightly convex with respect to the horizontal center line, FIG.