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The impact of toolpath design on the thermal history of the layer interface is considered by dividing the crosB-section area into zones with similar thermal history .
 concept or principle: impact; process parameter: toolpath; engineering feature: design; process parameter: layer; concept or principle: interface; process parameter: area
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: impact; process parameter: toolpath; engineering feature: design; process parameter: layer; concept or principle: interface; process parameter: area