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At the deposition ending moment , the heat conduction in the axial direction is the predominant heat dissipation orientation , whereas the circumferential orientation becomes the main heat dissipation direction in the top layers .
 concept or principle: deposition; concept or principle: heat conduction; concept or principle: heat dissipation; concept or principle: orientation; concept or principle: heat dissipation
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:
 concept or principle: deposition; concept or principle: heat conduction; concept or principle: heat dissipation; concept or principle: orientation; concept or principle: heat dissipation