The effects of tempering weld-pass treatment on toughness of HAZ of X80 pipeline steel were studied by the technique of welding thermal simulation and the method of microscope analysis.
采用焊接热模拟技术和显微分析方法，研究了回火焊道热处理对X80级管线钢焊接热影响区韧性的影响规律。
2
By using thermal spraying technique for making moulds much time and money is saved.
采用热喷涂方法制造模具可以节省大量的时间和成本。
3
The average life of oxygen vacancies in quartz from sediments were estimated using ESR signal intensity of E' centers by thermal activitation technique.