Where m represents the average amount of the mixture M 1, and M2 represents the corresponding amounts of the two components. For example, m represents the average relative molecular weight, M 1, M2 represents the respective relative molecular weights of the two components, n 1, n2 represents the share of the two components in the mixture, and N 1: N2 represents the material ratio of the two components in most cases;
Sometimes it can also be the mass ratio of the two components. When judging, it depends on n 1, n2 represents the share of any physical quantity in the mixture, such as the quantity, quantity fraction and volume fraction of the substance, then n 1:n2 represents the quantity ratio of the two components; Such as mass, mass fraction and element mass percentage, then N 1: N2 represents the mass ratio of the two components.
Cross-thinking source:
The crossover method in mathematical operation was originally obtained according to the problem of solution mixing, that is, if the concentrations of A and B are summed separately, the concentration R of the mixed solution of A and B must be between and. The most common problem in data analysis is the growth rate, so the application of cross thinking in data analysis mainly means that the mixed growth rate is between the two growth rates before mixing.