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【空調版】毎日一問20171113

2017-11-13View Original

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この投稿は、2017年12月15日16時00分にhesonchang214によって最終的に編集されました。GB50243-2002に定められているボイラーの安全付属品の取り付けや安全弁の定圧規定によれば、ボイラーに安全弁が1つ設置されている場合は、( )に従って定圧を設定しなければなりません。 A、極限値 B、比較的高い値 C、比較的低い値 D、試験 正解:C

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