897
Uniform distribution of carbon fibers and good interfacial adhesion between fibers and matrix was achieved by pre-modification of carbon fibers through oxidation .
 concept or principle: distribution; material: carbon fibers; machanical property: adhesion; material: fibers; material: carbon fibers; manufacturing process: oxidation
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:
 concept or principle: distribution; material: carbon fibers; machanical property: adhesion; material: fibers; material: carbon fibers; manufacturing process: oxidation