Hence the locus of J relative to AB, and the locus relative to CD are equal ellipses of which A, B and C, D are respectively the foci.
As a result of this theory, in the case of a retaining wall supporting a vertical face of earth beneath an extended horizontal plane level with the top of the wall, we get p _ wx 2 1 - sin ii 2 I +sin P' [[Reservoir Empty Reservoir Full Ellipses Of Vertical Pressures On Horizontal Joints]].
Fish farms are represented by the filled rectangular block, with the areas of impacted seabed denoted by the filled ellipses.
The number of irregular ellipses or circles made within a given time differs much with different species.
Three test points are shown with their uncertainty ellipses.