A proper combination of size, height, and operating frequency make it fit for medium or long range communication.

And because you haven't turned up the proper combination yet, Stowar, is no reason that such a person does not exist.

It needed only that proper combination of class and democracy.

Though the motions of the wall were imperceptible, Harry's pressure produced the proper combination.

It felt out the proper combination, started the car for me, and I got it in motion.

The proper combination of these properties can result in safe, strong, economical and attractive products.

Then she was back in the com room, leaning over the key board, picking out the proper combination to trigger a sweep ray.

There are older and better words which if you arrange them in the proper combination you make it stick.

Those functions should provide images, but the proper combinations must be found empirically.