1360
The model can be used to insert additional dwell times after each layer so that the next layer of printing initiates after the previous layer is sufficiently cool such that the existing structure is appropriately solidified .
 model, be, insert, dwell times, layer, layer, layer, structure
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 model, be, insert, dwell times, layer, layer, layer, structure