空调制冷行业英语
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Unit 3 Facilities of Refrigeration & Air Conditioning

Unit Objectives

◆ Learn how to choose an air conditioner or refrigerator.

◆ Learn about the basic principle for a refrigerator to work.

◆ Learn about the different types of air conditioners and refrigerators.

◆ Learn how to write an inquiry letter and a response letter.

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