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In this way , the calibration of the thermal properties is made less sensitive to the large uncertainty usually affecting the melt pool size measurements and the range of applicability of the thermal model is explored over a broad spectrum of L-PBF process parameters .
 concept or principle: calibration; concept or principle: thermal properties; material: melt pool; process parameter: range; concept or principle: model; manufacturing process: L-PBF; concept or principle: parameters
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: calibration, thermal properties, melt pool, range, model, L-PBF, parameters 
Answer:
 concept or principle: calibration; concept or principle: thermal properties; material: melt pool; process parameter: range; concept or principle: model; manufacturing process: L-PBF; concept or principle: parameters