During this period, Barry tested every major system on board.

"The forms I've seen essentially look to cover all of the major systems in the home," he said.

But it didn't hurt to be prepared, so she had her people run a level one diagnostic of all major systems.

Only major military systems or innovations and their development after 1800 are covered here.

He had withdrawn from the major economic system of this country a long time ago.

We're the only thing between the enemy and 17 major planetary systems.

Well, hopefully, the General was able to check out the major systems, he thought.

Generally, travel between major systems was relatively short and direct, as might be expected.

Most of the major systems, including all power and life support, were running for the moment.

There are no examples, in all history, of a major political system without parties.