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The distinctive WAAM thermal cycle , which involves repeated heating and cooling , produces meta-stable microstructures and inhomogeneous compositions in the fabricated part .
 manufacturing process: WAAM; process parameter: thermal cycle; manufacturing process: heating; manufacturing process: cooling; machanical property: meta-stable microstructures; concept or principle: fabricated
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:
 manufacturing process: WAAM; process parameter: thermal cycle; manufacturing process: heating; manufacturing process: cooling; machanical property: meta-stable microstructures; concept or principle: fabricated