850
Multi-wall carbon nanotubes with a low weight ratio were mixed in SL resin by mechanical mixing and ultrasonic dispersion .
 material: carbon nanotubes; process parameter: weight; manufacturing process: SL; material: resin; concept or principle: mechanical mixing; process characterization: ultrasonic dispersion
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:
 material: carbon nanotubes; process parameter: weight; manufacturing process: SL; material: resin; concept or principle: mechanical mixing; process characterization: ultrasonic dispersion