1390
Lin reported a graded microstructure along the build direction and identified the martensite structure , Widmanststructure and basket-wave structure from the bottom to the top region of the fabricated component , as shown in 3 .
 engineering feature: graded microstructure; process parameter: build direction; material: martensite; concept or principle: structure; concept or principle: fabricated; machine or equipment: component; material: as
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:
 engineering feature: graded microstructure; process parameter: build direction; material: martensite; concept or principle: structure; concept or principle: fabricated; machine or equipment: component; material: as