The dynamic mathematical model and the simulation model are established for a cryogenic gas regulator.
建立了低温气体调节器动态数学模型及仿真模型。
The surface of 20 steel was treated by low temperature gas multicomponent thermochemical treatment.
对20钢表面进行低温气体多元共渗,再进行高频感应加热快速淬火与回火处理。
The technology of low temperature gas multicomponent thermochemical treatment was systematically studied for prohibiting corrosion of stray current.
对低温气体多元共渗技术在预防杂散电流腐蚀方面的应用做了较为系统的研究。
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