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The main contributions of this study are : ( I ) in the past , a point-wise comparison between simulation results and experimental measurements is more favored to validate the employed model , where the general picture is lost ; rather , to validate the proposed model , the simulated distortion of the bottom surface of a thin substrate is compared with experimental measurements using a 3D laser scanner , in terms of both magnitude and distribution map .
 enabling technology: simulation; concept or principle: experimental; concept or principle: model; concept or principle: model; concept or principle: distortion; concept or principle: surface; material: substrate; concept or principle: experimental; concept or principle: 3D; process parameter: magnitude; concept or principle: distribution
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: simulation, experimental, model, model, distortion, surface, substrate, experimental, 3D, magnitude, distribution 
Answer:
 enabling technology: simulation; concept or principle: experimental; concept or principle: model; concept or principle: model; concept or principle: distortion; concept or principle: surface; material: substrate; concept or principle: experimental; concept or principle: 3D; process parameter: magnitude; concept or principle: distribution