Besides, there was only this one field generator here in the laboratory.

But the captain shrugged off her mention of the field generator.

Of course we are all grateful that you were able to do something about the field generator and prevent worse trouble.

Levels are topped off on three of the four field generators.

"Just in case I miss getting it into the field generator."

He touched a control, then watched as the field generator began operating.

Then we waved to the four people who were standing by at the field generator's handles.

"Okay, then how'd they manage a field generator if that was the extent of their building technology?"

I haven't been able to find the field generator anywhere.

You know the risk: there can be no return from the other time plane without the field generator.