Classify wholesalers by operating characteristics and market services offered.

根据运作特性和提供的市场服务来将批发商分类.

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So, the study on the operating characteristics of synchronal rotary air conditioner compressor is necessary.

因此, 对同步回转式空调压缩机的热、动力特性研究,具有重要的理论意义和现实意义.

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