本设备集水解酸化和生物接触氧化两者优点于一体，是一种处理生活污水的中小型装置。
The equipment described in this paper as a kind of sewage treatment device possesses the advantages of both hydrolytic acidulation and biological contact oxidation.
该电阻是一种手持式装置的中小型能源单车。
本设计装置主要用于中小型交流电动机的综合保护，它具有断相、过载短路保护功能。
The designed installation is mainly used in synthetic protection of small AC motor. It has the functions of phase failure protection and overload short protection.
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