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プロセスエンジニアリング地域-計装自動制御版-毎日一問-2020-02-12日の問題

2020-02-12View Original

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プロセスエンジニアリング部門-計装自動制御版-毎日一問-2020-02-12の問題 穴埋め問題:27、鋼管の溶接には一般的に電気溶接とガス溶接が用いられるが、管壁の厚さが4mm未満の場合は(      )を使用すべきである。             参考答案: ガス溶接

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