protective gas meaning in English

保护气体
保护性气体

A pressing sequence can be started with or without a vacuum , and the firing chamber can be optionally flooded with protective gas
在真空或没有真空的条件下也可以启动压制过程，作为选项，焙烧室还可以使用保护气体吹扫。
The protective gas equipment of magnesium melting is an attached product for the quantitative casting furnace . it is also a new developed equipment of our company
镁合金熔炼气体保护装置是为定量浇注炉配套的产品，也是我公司最新研制开发的设备。
The protective gas adopted in this equipment has a better protection effect than that ofthe same kind . with lower cost and no pollution , it is the green gas for environment protection
该设备采用的保护气体比同类保护气体保护效果好费用低且无污染，是新一代绿色环保气体。
The company developed special magnesium melting furnace , protective gas , quantitative transport equipments , and vacuum casting equipments which can satisfy the production of various kinds ofmagne sium alloys
研制出的镁合金专用熔炼炉气体保护装置定量浇注设备和真空吸铸设备等可满足不同种类的镁合金产品的生产。