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When looking at the part interior , specially designed porosity is seen as a promising new feature for internal transport of gasses and fluids .
 engineering feature: designed; material: as; engineering feature: feature; process characterization: transport; material: fluids
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: designed; material: as; engineering feature: feature; process characterization: transport; material: fluids