According to the test parameters, the performance of the heat pump is better than the common air conditioning unit.

通过实验验证，地下水源热泵系统以及地埋管系统均比户型空调机组的性能系数高。

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Combining theory with practice, expounds the common issues and handling measures for central air conditioning water system, and provides some practical experience for operating and managing personnel.

依据理论与实践相结合的原则，阐述中央空调水系统的常见问题及其相应处理措施，为维护管理人员提供一些实际经验。

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Analyses common mistakes in the layout design and installation of air conditioning cooling tower, and puts forward pertinent measures.

本文分析了空调系统中冷却塔布置设计和安装的常见错误，提出了相应的改进措施。

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They have in common a certain frugality (until recently, Lazard in New York occupied an office without air conditioning), and an appreciation of social connections.

ECONOMIST: Investment banking