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In the present work effect of welding parameters on pre-positioned wire Electron Beam additively deposited layer width is investigated .
 manufacturing process: welding; concept or principle: parameters; concept or principle: Electron Beam; process characterization: deposited layer
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: welding; concept or principle: parameters; concept or principle: Electron Beam; process characterization: deposited layer