"substitution relationship" is correct and usable in written English.
You can use it to refer to a situation in which one thing stands in for another. For example, "The teacher created a substitution relationship between students and assigned them different roles in the play."
In addition, the substitution relationship between R and C can be theoretically derived.
There was a substitution relationship between work commute and nonwork travel when levels of accessibility changed.
This paper explores the substitution relationship between trade credit and bank credit, and its counter-cyclic dynamic pattern through economic cycles.
The panel cointegration results show that in the long run, oil prices have a positive impact on nuclear energy consumption, suggesting the existence of the substitution relationship between nuclear energy and oil.
Unlike the grains substitution relationship, meal substitution rates showed different patterns and appear to exhibit weak correlations with the price spread of meal inputs.
On the other hand, we found that whisky and brandy have a weak substitution relationship.
Second, we confirm the existence of perfect substitution relationships among variant renewable technologies, which suggests that Korean consumers do not perceive them as differentiated goods.
For example, the cross-price elasticity of meats with respect to the price change of poultry products is 0.0608, implying substitution relationships between these two food groups.
Differences between annuals and perennials, in terms of speciation rate and/or metabolism, could underlie the generation time substitution rate relationship [ 67], and might be expected to similarly influence each of the plant's three genomes.
Given the great sequence diversity, likely dependent on a fast evolutionary rate of molecular substitutions, the relationships among the MgCRP-I peptides (fig. 3) and with other CRPs (fig. 5) remain unresolved.
Transaction cost economics argues that the modern large firm represents a substitution of contractual relationships with an authority relationship.
