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单词
protective atmosphere
释义
protective atmosphere
protective atmosphere
[
prə′tek·tiv ′at·mə‚sfir
]
(metallurgy)
A substance such as inert or combusted fuel gas which surrounds a workpiece to be heat-treated, welded, brazed, or thermally sprayed under controlled conditions.
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enchephalitis
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更新时间:2025/3/3 6:40:33