The phrase "a variation in length" is correct and usable in written English.
It can be used when discussing differences or changes in the size or duration of something, such as objects, texts, or time periods.
Example: "The project requires a variation in length to accommodate different user needs."
Alternatives: "a difference in length" or "a change in length".
The NiZn-ferrite films were deposited by spin-sprayed ferrite plating, where magnetic films were patterned with a variation in length (15 2 mm) and width (2000 50 μm).
However, a variation in length of persistence between the patients was observed.
Alignment of the primary G ORFs showed a variation in length, even for members of the same sublineage, due to single nucleotide substitutions that resulted in premature termination codons.
The genomic organization of the Muc13 gene raises the possibility that a variation in length of the PTS domain may be accomplished not only by recombination events, as is the case for the human MUC1 polymorphism, but also by a regulation of splicing of mucin domain exons.
In addition, there was a variation in the length of the paragraphs within each article and the length of the articles.
There is a variation in stream length ratio between streams of different order due to differences between slope and topography indicating the late youth stage of geomorphic development in the streams of the study area (Singh and Singh 1997; Vittala et al. 2004).
A variation in the length of the hypervariable region in 1 human strain of genotype 3e was previously reported (9 ).
Clones that suggest indels, however, potentially can be explained by a variation in the length of the insert illustrated by the probability distribution p(Y).
The large transverse displacements of the bar ends induce a variation in their lengths giving rise to axial forces modelled by longitudinal springs.
As a consequence, the IGS region may show a marked variation in length, due to the redundancy of those functional elements (repeats) [ 5, 6].
The chromosome complement of the new species showed a bimodal variation in length.
