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Aspects of digitalization are still somewhat underrepresented and pose a bottleneck between design and manufacturing , including computationally inexpensive models and an entirely self-contained process from CAD file to Gcode .
 concept or principle: bottleneck; engineering feature: design; manufacturing process: manufacturing; concept or principle: process; manufacturing standard: CAD file
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: bottleneck; engineering feature: design; manufacturing process: manufacturing; concept or principle: process; manufacturing standard: CAD file