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The decent agreement between the experimental and the numerical results demonstrates the validity of the numerical analysis model used for heat transfer and pressure drop prediction of the additively manufactured manifold-microchannel heat exchanger .
 concept or principle: experimental; concept or principle: model; concept or principle: heat transfer; concept or principle: pressure; concept or principle: prediction; manufacturing process: additively manufactured; machine or equipment: heat exchanger
Please list all entity words in the text that fit the category.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} 
Answer:
 concept or principle: experimental; concept or principle: model; concept or principle: heat transfer; concept or principle: pressure; concept or principle: prediction; manufacturing process: additively manufactured; machine or equipment: heat exchanger