Significados de unidirectional flow en inglés

Recent electrophysiological and molecular biological studies using isolated islets also presumed unidirectional flow.

We have developed a pumpless cell culture chip that can recirculate small amounts of cell culture medium (400 μL) in a unidirectional flow pattern.

Unidirectional flows typically aren't much of a problem until they encounter an obstacle- anarrowdoor, let's say, or a tight turn.