In industrial production many of equipment work at high temperature and high pressure .

在工业生产中，许多机械和设备的法兰连接系统都是 在 高温、 高压条件下 工作的。

Blades especially turbine blades work at very severe environments with high temperature high pressure high-speed high-corrosion which required that they have high strength and excellent comprehensive mechanical properties .

叶片在 高温、 高压、高转速、高腐蚀的恶劣环境 下 工作，要求具有很高的强度以及优良的综合机械性能。

At present the research work on non-equilibrium plasma at high pressure and its source are confined to weak ionization discharge and the problems involves in it are low concentration of plasma high-energy consumption and huge volume .

目前， 高 气压非平衡等离子体及其源的 研究局限于弱（电场）电离放电范畴，存在等离子体浓度低、能耗甚高和体积庞大等问题。