The magnetic density of weldments was detected and analyzed in different heat treatment conditions by metal magnetic memory technology.
用金属磁记忆检测技术，对不同热处理状态下焊接件的磁场强度进行了检测和分析。
The microstructure and hardness of the layer of H13 tool steel gas-nitrided in different heat treatment conditions were studied by X-ray, SEM and micro-hardness test.
采用X射线衍射、扫描电镜及显微硬度等技术，综合比较和分析了H13模具钢在不同热处理状态下经相同气体渗氮处理后表层的组织结构和硬度。
In the paper, the samples of polyethylene threphthalate (PET) under the different shaping techniques and heat treatment conditions have been studied by means of TMA and DSC methods.
本文采用热机械分析（TMA）和差示扫描量热分析（DSC）等实验手段，对不同成型工艺和预热处理条件下的PET试样进行了研究。
应用推荐