"You're talking about a fuel that doesn't have supply stations everywhere," he said.

That means we have to set up supply stations, even for the reconnaissance.

I may be marooned around here a long time, and never get another chance at this supply station.

His father said, "You were due back from the supply station four hours ago."

Then the machine either headed for a supply station or to the break, and fixed it.

But even she thought it was strange that she had to put in at a supply station.

Eventually, there would be supply stations all over the southern tip of the continent.

"We got into the supply station a day early."

Perhaps the message explaining him to Ollery was even now back at the supply station.

And there are no supply stations close enough at hand to be of any use.