工芸基礎知識（選択問題）20180903
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冷凍装置で蒸発圧を大気圧以上に保つ主な理由は、です。 A．冷却能力の低下を防ぐ B．冷凍係数の低下を防ぐ C．吸気温度が過度に下がるのを防ぐ D．空気がシステム内に混入するのを防ぐ
吸気温度をあまり下げないように#こちらで迅速に返信#
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