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Geometrical modelling of the weld-bead to predict the layer thickness of a given layer for bead-on-bead deposition .
 enabling technology: modelling; engineering feature: weld-bead; process parameter: layer thickness; process parameter: layer; concept or principle: bead-on-bead deposition
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:
 enabling technology: modelling; engineering feature: weld-bead; process parameter: layer thickness; process parameter: layer; concept or principle: bead-on-bead deposition