The phrase "attached underneath" is correct and usable in written English.
It can be used to describe something that is physically or metaphorically affixed to the bottom of another object or document.
Example: "Please find the report attached underneath the cover letter for your review."
Alternatives: "affixed below" or "enclosed beneath".
When the ground connection was attached underneath the projection path of the electrode, the droplet deflection disappeared.
Finally, we tested the mice with the Barnes Maze which is a circular platform with an escape hole that leads to a small chamber attached underneath the platform.
In this communication, it is attempted to utilize the heat losses from the basin of a distillation unit for drying ginger in a drying chamber attached underneath the distillation unit.
Net efficiency data was collected by repeatedly towing with an experimental trawl consisting of the usual trawl net with an auxiliary net attached underneath which is designed to capture all fish escaping under the trawl footrope.
In this study, it was assumed that the absorber was attached underneath the flat plate single glazing sheet of polycrystalline silicon PV module and water has been used as a heat transfer medium in absorber.
The Banes Maze is a (90 cm elevated) circular platform (100 cm diameter) with an escape hole (5 cm diameter), which leads to a small chamber attached underneath the platform.
Glenn later gave Melissa headphones and attached electrodes underneath her eye to measure how much a muscle there contracted when she heard a burst of noise meant to startle her.
We were pioneers in a land of backyard patios and lawn care, staking our claim on a neat white three-bedroom starter with an attached garage underneath the sunroom.
The insect was attached from underneath the membrane, Fig. 1a, with the help of a Scotch tape.
Underneath, and attached to the dress, was a corset, which was of course kind of tight, but wasn't so bad considering my legs were free to move around.
Since the LEDs were attached to the material underneath, the displacement of each LED, from which deformations can be derived, is the same as the material under investigation.
