And there were barriers, still imperfectly understood, between the bands that meant cracking the wall was always risky.

"Big business" was back of him; yet at the time this, the most important element in his strength, was only imperfectly understood.

The rules for these patterns remain controversial and imperfectly understood.

Even if we have imperfectly understood Yellowstone, the park has always had the ability to reach the hearts of its visitors.

Even among those shopping in earnest for a car, the incentive programs seemed to be imperfectly understood.

"An attack by a weapon imperfectly understood and controlled?"

All three of these steps are complex and imperfectly understood.

The old institutions were being destroyed, but the new ones were strange and imperfectly understood.

Although Lolla had imperfectly understood me at the time, there was no reason at all why she should continue to do so.

I regard it as an imperfectly understood phenomenon of the Other Space.