The phrase "are often overlaid" is correct and usable in written English.
It can be used when describing something that is frequently covered or layered on top of another thing.
Example: "In the design process, various textures are often overlaid to create a more dynamic visual effect."
Alternatives: "are frequently layered" or "are commonly superimposed".
Given that such policies are often overlaid on top of pre-existing private support networks, various studies have analysed whether public assistance programs displace or crowd-out private transfers (e.g. Cox and Jimenez 1992; Rosenzweig and Wolpin 1994; Attanasio and Ríos-Rull 2000; Jensen 2003).
As the most intuitive and straightforward expression feature, differential expression statistics are often overlaid onto protein interaction network, and subnetworks enriched for differential expression genes are fetched [ 7- 11].
In mice (and in human) back-shifting normally is accomplished considerably faster than forward-shifting of a similar time span, but activity read-outs are often overlaid by the masking influence of the new light phase (Fig. 5E, lower part of the actogram).
The focusing screen is often overlaid by a pattern of fine concentric lens sections.
His work is often overlaid with a lush, suggestive surface texture – velvety lighting, fashion-designer costumes – and while this has earned him a worldwide cult following, it has also led to accusations of fixation on style at the expense of deep content.
They are often five or ten minutes long, overlaid with religious chanting.
Rhythm drives these songs and the overlaid rhythm patterns are often changed several times during the same song, hence the name "breakbeats".
The high-dimensional data are often displayed on the geospatial map with multiple views and layers overlaid with numerous data points, connections, and details.
Although each BigWig file contains only a single value for any given base, BigWig tracks are often combined into a 'multiWig' display that allows multiple BigWig files to be overlaid on the same axis.
The result for the top white wines is often a cool-climate crispness overlaid with well-ripened, mouthwatering fleshiness and fruit.
As intelligently portrayed by Zawe Ashton, in largely wordless sequences, often overlaid with reminiscences from friends, ex-boyfriends and acquaintances, Joyce Vincent was a very confident person of South Asian and Caribbean extraction.
