2004
But when filled into solid hulls , the number of lattice units is very big , which makes the CAD file difficult to operate , including sweeping , meshing/mapping and tessellation .
 machine or equipment: solid hulls; engineering feature: lattice units; manufacturing standard: CAD file; engineering feature: tessellation
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:
 machine or equipment: solid hulls; engineering feature: lattice units; manufacturing standard: CAD file; engineering feature: tessellation