The pitch of the sound depends on the size of the wooden trough.
The younger man entered behind the older and came to stand before a series of wooden troughs.
The water is caught in a wooden trough below the cone.
The launcher was a wooden trough made from old crates.
It has eight strings which run above a wooden trough.
Then they brought him a wooden trough, out of which he had to eat.
The two men stood side-by-side in the little building urinating into a long wooden trough.
This collapsed in 1808, and a wooden trough was used as a temporary replacement.
Some ten feet away, Bozo found an old wooden trough.
He stood where they'd found the wooden trough and studied the terrain.