799
Ning , Cong evaluated the effect of weight ratio and length of carbon fiber on physical properties of the FDM samples with ABS matrix .
 process parameter: weight; material: carbon fiber; machanical property: physical properties; manufacturing process: FDM; material: ABS matrix
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:
 process parameter: weight; material: carbon fiber; machanical property: physical properties; manufacturing process: FDM; material: ABS matrix