The phrase "a layer of residue" is correct and usable in written English.
It can be used to describe a thin coating or deposit that remains on a surface after a substance has been removed or has settled.
Example: "After cleaning the glass, I noticed a layer of residue that needed further scrubbing to remove completely."
Alternatives: "a film of residue" or "a coating of residue".
It had been pumped dry, but unknown to the operators a layer of solid residue had been left behind in the vessel.
So it collects, and you end up with a layer of flammable residue in your lungs.
In particular, the transmission from the allosteric site to the signaling surface of the receiver domain NtrC was shown to be mediated by a layer of hub residues.
The 'Vernier' zone comprises a layer of framework residues that support antigen-binding loop conformations and their relative dispositions and has therefore been suggested to play an important role in fine-tuning the fit of an antibody to antigen (Foote and Winter, 1992).
In just one hour, a desert sandstorm can plaster even the toughest solar panels with a thick layer of residue, reducing their efficiency by upwards of 70-80%.
If done correctly, the bottom of your paper towel should contain a dark layer of residue.
The advanced mode was used to recreate the heptameric model (Fig. 5d), where one of the interfaces between component helices is slipped by a heptad (∼10 Å), leaving a layer of hydrophobic 'core' residue unsatisfied on two strands.
Deeper, lawsonite is the main hydrous phase that can hold water in the crust at higher P and T. Its breakdown occurs over a wide depth range as it starts at ∼110 km (∼36 kbar) and at temperatures higher than 650°C, occurring first at the top of slab, leaving a layer of dry Cpx-Grt-Coe eclogite residue that gets thicker with depth.
So, here goes: start with a layer of large stones, two feet thick, topped by an inch of gravel, five more of clinker — residue from volcanic rock that can absorb and retain water — and a top strata of limestone.
So, here goes: start with a layer of large stones, two feet thick, topped by an inch of gravel, five more of clinker residue from volcanic rock that can absorb and retain water and a top strata of limestone.
