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【毎日一問】工程基礎知識(選択問題)20200301

2020-03-01View Original

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この投稿は、2020年3月1日09時24分にHP0377によって最終的に編集されました。圧力状態の等級が1級または2級の稼働中の工業用パイプラインにおいて、その検査間隔は一般的に(D)を超えません。 A.3年 B.4年 C.5年 D.6年

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