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The distributions of the temperature gradient ( G ) and solidification rate ( R ) on the solidification interface were evaluated from the simulation results .
 concept or principle: distributions; process parameter: temperature gradient; process parameter: solidification rate; concept or principle: solidification interface; enabling technology: simulation
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
 Entities: distributions, temperature gradient, solidification rate, solidification interface, simulation 
Answer:
 concept or principle: distributions; process parameter: temperature gradient; process parameter: solidification rate; concept or principle: solidification interface; enabling technology: simulation