5095
According to the current model of isothermal laser sintering , semi-crystalline thermoplastics need to be processed within a certain temperature range , resulting in the simultaneous presence of the material both in a molten and solid state , which is present during part building .
 model, isothermal, sintering, thermoplastics, be, temperature range, material, solid state
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, isothermal, sintering, thermoplastics, be, temperature range, material, solid state