工芸基礎知識（選択問題）20181117
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冷凍装置内の空気は主に中に集まる。 A．圧縮機クランクケース B．吸気管 C．排気管から凝縮器まで D．リザーバータンク ヒント：空気はフロンより軽い。
C．排気管から凝縮器まで#こちらで迅速に返信#
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