8759
To determine the conditions needed to consistently create fine conductive lines , we simulated the volumetric flow rate and analyzed the effects on line geometry of several printing parameters including valve opening , dispensing gap , and substrate translation speed .
 flow rate, geometry, parameters, substrate
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 flow rate, geometry, parameters, substrate