例句與造句

1. This " bending " is not a property of the non-Euclidean lines, only an artifice of the way they are being represented.
2. The first model, based on a disk, has the advantage that geodesics are actually line segments ( that is, intersections of Euclidean lines with the open unit disk ) . The last model has the advantage that it gives a construction which is completely parallel to that of the unit sphere in 3-dimensional Euclidean space.
3. It's difficult to find euclidean line in a sentence. 用euclidean line造句挺難的