In the mid-18th century, the dynamics of the Solar System were reasonably well understood, but astronomers only had an approximate idea of its scale.

Gapping has been thoroughly studied, and it is therefore reasonably well understood, although the theoretical analyses can vary significantly.

This control-either the inhibition or increase in emission at a particular wavelength-is reasonably well understood.

Although the way in which the Iapetus Ocean evolved and disappeared in the Paleozoic is reasonably well understood, the geodynamics of its origin are less clear.

Second, Mr. Siegel asked, "was the honking reasonably understood to be expressive?"

To Harris, this possibility fits well with his belief that morality can only be reasonably understood by referring to facts about minds, and thus people's brains.

The Holocaust, with its genocidal mechanisms long hidden from other nations, is now reasonably understood in physical terms.

Chemical chain reactions were first proposed by German chemist Max Bodenstein in 1913, and were reasonably well understood before nuclear chain reactions were proposed.

Sources of water and water drainage routes through and below temperate and sub-polar glaciers are reasonably well understood and provide a basis for understanding tunnel valleys.

A lot of microeconomics is reasonably well understood.