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工芸基礎知識(選択問題)20181124

2018-11-24View Original

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冷凍圧縮機の排気弁の多用チャネルは、運転時には使用されません。 A.排気 B.システムから冷媒を取り出す C.圧縮機でシステムを真空にする D.冷媒を充填する ヒント:圧縮機で真空にする際は、排気側から排気する。

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