1999
The most important issues that can be identified by microCT and which are relevant to biomimetic AM are : - Powder can get stuck in complex areas , especially inside lattices , and when heat-treated they become stuck .
 material: be; process characterization: microCT; application: biomimetic AM; material: Powder; process parameter: areas; concept or principle: lattices; manufacturing process: heat-treated
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: be; process characterization: microCT; application: biomimetic AM; material: Powder; process parameter: areas; concept or principle: lattices; manufacturing process: heat-treated