2091
AM enables the design of fluent corners , smooth transitions between cooling channel diameters and the removal of unwanted drilling cavities , resulting in decrease in pressure loss by up to a factor of 3 .
 manufacturing process: AM; engineering feature: design; engineering feature: fluent corners; machine or equipment: cooling channel; manufacturing process: drilling; concept or principle: pressure
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:
 manufacturing process: AM; engineering feature: design; engineering feature: fluent corners; machine or equipment: cooling channel; manufacturing process: drilling; concept or principle: pressure