工芸基礎知識（選択問題）20181030
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ピストン式冷凍圧縮機の仮蓋の主な役割はです。 A．余剰容積の減少 B．シリンダーヘッドの冷却性能向上 C．液体衝撃による機械損傷の防止 D．排気抵抗の低減
C．液撃による機器損傷の防止#こちらに迅速に返信#
C．液撃による機器損傷の防止#こちらに迅速に返信#
C．液撃による機器損傷の防止#こちらに迅速に返信#
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