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【ポンプ技術版 毎日一問】2020年1月6日(春節特典:解答公開前に正解すると10財富がもらえます)

2020-01-06View Original

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65.遠心ポンプの排気時は、迅速に()バルブを絞るべきである。A、入口 B、出口 C、バイパス 昨日の問題の答え:B 64.穴の最大許容寸法と軸の最小許容寸法の代数的差が負の値になることを(B)という。A、過剰隙間 B、最小過剰量 C、最大過剰量 (翌日公表前日の解答、公表前に正解すると10財富の報酬、公表後に正解すると5財富の報酬、参加だけでも3財富の報酬)

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