5170
Average longitudinal grain area decreases by approximately 80 % when moving from the center to the edge of the deposit due to variable growth directions dependent on the local curvatures of the moving molten pool .
 Average, grain, area, molten pool
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:
 Average, grain, area, molten pool