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Terms for subject Refrigeration containing 双向 | all forms | in specified order only
ChineseEnglish
双叶轮反向轴流风机contra-rotating fan
双向受控强制通风double-flux controlled forced-draught ventilation
双向百叶送风口double deflection supply grille
双向触发二极体diacs
双向调风器double deflection register

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