The mixed gas metal arc welding process is used for the first time by DFEM in the discharge chamber of the hydraulic turbine exported to Syria's Tishrin.
东方电机股份有限公司首次采用混合气体熔化极气体保护焊焊接水轮机转轮室，并且在出口叙利亚的迪什林水轮机中应用。
And the other is to use the recordings of the electron current waveforms in the gas mixtures studied in a discharge chamber.
另一是由高能脉冲激光释放电子，记录预放电电子电流波形来确定混合气体的临界电场强度。
Strong platoon type: when the combustion chamber takes oxygen, the exhaust gas passes through the small blower through the pipeline to discharge outdoors, the price is higher;
强排式：燃烧时室内取氧，废气通过小型鼓风机经过管道排出室外，价格较高；
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