1. In any rectangular configuration (such as the cross section of a rectangular duct), the ratio of the longer dimension to the shorter.
2. In a rectangular configuration, the ratio of the long-side to the short-side.
1. In any rectangular configuration (such as the cross section of a rectangular duct), the ratio of the longer dimension to the shorter.
2. In a rectangular configuration, the ratio of the long-side to the short-side.