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Computational efficiency and power are particularly important in continuum structural optimisations and will be key for viable design procedures in large-scale , multifunctional , multiscale and cellular-based TO .
 concept or principle: Computational efficiency; process parameter: power; concept or principle: continuum; material: be; engineering feature: design
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: Computational efficiency; process parameter: power; concept or principle: continuum; material: be; engineering feature: design