The phrase "were folded over" is grammatically correct and can be used in written English.
Example: The pages of the book were folded over, revealing a hidden message written in code.
Graduate students were folded over microscopes, like half-open books.
The collection was mostly made up of layers upon layers of thin tanks, translucent button-down shirts, skimmy dresses and rompers that were folded over at the waist.
As the Works Progress Administration guide to Texas put it, Texas is so big that if it were folded over with its northern line as a hinge, Brownsville would be 120 miles from Canada.
These included a fully clenched fist, a semi-fist with the fingers curled up but the thumb pointed outwards, and a poorly formed fist in which the fingers were folded over the palm (but not fully curled) and the thumb pointed outwards.
The somewhat variable shape of the minichromosomes suggests that they are relatively flexible; therefore, it is likely that some minichromosomes were folded over during sample preparation, resulting in images showing a short extension and a smaller measureable diameter.
For each gel and spot, the ratio Cy5/Cy3 was calculated, and ratios less than unity were folded over by inverting the ratio value.
Some of the shapes have been folded over before cutting so as to look like table decorations.
Some look like ordinary crepes or pancakes, others are folded over like an omelet, rolled into very long hollow cylinders or made into crisp, wafer-like sheets that flake off and disintegrate to the touch.
One of the edges where it's folded over will be your head hole.
Note, however, that the left loop will need to be folded over before you begin working with this right loop.
Spoon tomato mixture on to chicken breasts, leaving enough room so that the breast can be folded over, creating a pocket.
