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Two levels of mesh coarsening is found to be the most effective case for both materials reducing the computational time by 75 % while reporting less than 2.5 % error for the peak distortion and negligible error for the thermal history difference as compared to the static mesh .
 be, materials, error, distortion, error, as
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:
 be, materials, error, distortion, error, as