... 螺旋齿 helical teeth 密封式压缩机 hemertic type compressor 十字形齿轮 herring-bone gear ...
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密封式制冷压缩机 sealed refrigeration compressor
密封式制冷压缩机组 hermetically refrigerating compressor unit
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事实上，艾默生公司是住宅和工业用设备风机的马达以及密封式制冷和空调压缩机用马达的主要生产商。
In fact, Emerson is a leading producer of both air moving motors for residential and industrial applications, and hermetic motors for refrigeration and air conditioning compressors.
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