机床采用精密CO2焊接，经高温退火消除应力，不变形。
Machine structure frame precisely welded by CO2, high temperature annealing treatment to ensure normally to run without deforming.
箱体采用退火或移动消除应力，减少变形，从而保证质量，表面采用喷砂处理，从而使外观美观大方。
The box adopts annealing or movement to eliminate stress, reduce deformation and ensure quality. The surface is subject to sand blasting to achieve elegant appearance.
研究了保护气氛对高效电机用无取向电工钢消除应力退火后磁性能的影响。
The effects of protective atmosphere on magnetic properties of non-oriented silicon steel for high-efficiency motors after stress relief annealing are investigated.
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