As the normal suppression method, pure helium is gradually replaced with He-Ar mixed gas for economical efficiency, especially the he content is more than 50%.
常用的抑制方法是侧吹氦气，而采用氦氩混合气体可降低生产成本，特别是当氦气含量高于50%时。
As the normal suppression method, pure helium is gradually replaced with He-Ar mixed gas for economical efficiency, especially the he content is more than 50%.
常用的抑制方法是侧吹氦气，而采用氦氩混合气体可降低生产成本，特别是当氦气含量高于50%时。
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