"We are involved in a series of long-term experiments," Drevin said.

Annon wondered how much she minded being tagged like an animal in a long-term experiment.

Machines like chemostats can be used to culture bacteria and keep them in a state of balanced-growth for long-term experiments.

"It's the program's first long-term experiment and it marks the beginning of an intensified schedule of testing for us."

The system prototype was successfully tested in long-term ground-based experiments.

The group also devised a range of highly influential long-term experiments on the ecosystem scale.

We hope to conduct long-term experiments with both media.

Since the common people lack the basic knowledge, reporting it without the benefit of long-term experiments will cause chaos in society.

Typically, a black lipid membrane will survive for less than an hour, precluding long-term experiments.

Atlantis also transported new long-term experiments to the space station.