2004
It is important to note here that process parameter optimization prior to building a part can limit procesB-induced porosity and this microporosity is expected to be the same in a test coupon than in a complex part .
 concept or principle: process parameter; concept or principle: optimization; concept or principle: limit; machanical property: porosity; machanical property: microporosity; material: be
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: process parameter; concept or principle: optimization; concept or principle: limit; machanical property: porosity; machanical property: microporosity; material: be