2885
The differences between low and high laser power fabrications , as well as the effects of various post-LENS heat treatments were systematically investigated and discussed .
 process parameter: laser power; material: as; material: as; manufacturing process: heat treatments
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: laser power, as, as, heat treatments 
Answer:
 process parameter: laser power; material: as; material: as; manufacturing process: heat treatments