英语词汇“shielding gas”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	shielding gas
释义	shielding gas shielding gas [′shēld·iŋ ‚gas] (metallurgy) Gas, such as nitrogen, oxygen, and carbon dioxide, used in shielded arc welding to protect molten weld from contamination and damage by the atmosphere.
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