Near to the pass are deep holes where strong vertical flows can occur.

Another place where secondary flows commonly occur is in tea.

Smaller flows occurred in the years 1961, 1985 and 1986.

Low flows, sometimes called base flows, occur for the majority of the year.

If the task is too easy or too difficult, flow cannot occur.

The Chicago researchers find that flow occurs when a person's skills are in exquisite balance with the challenges presented.

But he concedes that those flows would occur without Government guidance.

The maximum average daily flow on the river occurs between late March and early April.

When the flow is laminar, secondary flows do not occur.

The low flows occur during in late summer and early autumn, from July to October.