"type variation" is correct and usable in written English.
It usually refers to the different forms or varieties of something. For example, "The school offers a wide type variation of extracurricular activities."
The conductivity versus temperature plot obeys an Arrhenius type variation.
Collecting data with the EC machine allows a farm to map soil type variation within field very accurately.
Experimental and simulated results of ore type variation and pH change are presented.
To reflect the local rock type variation with depth, we first updated the typical mineralogy based brittleness calculation formulas.
Rock type variation is interpreted to be the key control on morphometric indices within the Gouritz catchment, especially hypsometry and stream length gradient.
In addition to porosity and mineral composition, pore type variation plays an important role in affecting permeability heterogeneity of carbonate reservoirs.
At smaller scales rock-type variation exert an additional influence on Dal.
Kelley et al. describe an analysis framework by which existing bulk transcriptomic data can be reanalyzed using cell-type-specific data to yield insights into cell-type variation across brain regions and diseases.
It was also found empirically that the apparent reaction order for water has a sigmoid-type variation with temperature which follows the integral Boltzmann distribution function.
The cathodic peak potential keeps shifting positively along with the surface coverage increasing, and the apparent peak current density normalized to the substrate surface area undergoes a volcano-type variation.
The two groups in this experiment did not differ significantly in any measure of how well they learned, suggesting that exposure to within-type variation has no measurable influence on the learning process overall.
