preferred oxidation 中文意思是什麼
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Argon serves as a shielding gas to protect metals from oxidation during welding. inert gas welding is the preferred method of joining several ferrous and nonferrous alloys
焊接中，氬作為保護氣防止金屬氧化。惰性氣體焊接是連接幾種含鐵和不含鐵的合金的首選方法。
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