"trivial role" is a correct phrase and can be used in written English.
It typically refers to a small or unimportant part in a larger situation or event. Example: Despite being a skilled actor, she was only given a trivial role in the play due to her lack of experience.
However, the number of tungsten shield layers plays a trivial role on the temperature gradient between the ALN powder sources and the crucible top.
In support of a trivial role for RdDM in P. patens, we found siRNA in P. patens to overlap with only 5% of methylated TEs, in comparison to 65% in Arabidopsis (Fig. 4b).
Relative to host suitability and invertebrate predators and parasitoids, predation by vertebrates generally has been assigned a trivial role in the dynamics of conifer bark beetle populations (Coleoptera, Scolytidae).
At the tribunal, in which one of Prof Wilmut's colleagues, Prim Singh, alleges bullying, the scientist said he did not play a trivial role in the project to clone Dolly and coordinated the work, but added that 66% of the credit should go to Professor Keith Campbell, a co-author on the 1997 paper.
This parameter plays a trivial role in petroleum reservoir and production calculations.
In the basic input-output equation, ( I − A ) x = y, the identity matrix I seems to play a trivial role.
The time history of mixing is known to play a crucial and non-trivial role in non-premixed turbulent combustion.
In order to account for this, the paper discusses the political and theological changes in the wake of the Glorious Revolution (1688); Bentley plays a non-trivial role in these matters.
As both the intrinsic (i.e. microstructural) and extrinsic (i.e. sample size) dimensions play a non-trivial role in the mechanical properties and material deformation mechanisms, it is critical to develop an understanding of their interplay and mutual effects on the mechanical properties and material deformation, especially in small-scale structures.
In the case of a nanoscaled beam, the roughness effects play a non-trivial role in RF motion.
Due to the implication from Beber et al. (Beber et al. 2009), the sharp changes in sovereign yield spreads is explained using differences in credit quality, though liquidity plays a non-trivial role, especially for low credit risk countries and during times of heightened market uncertainty.
