Through research of this topic, and strive to create Qingdao elderly safe, comfortable, friendly and harmonious environment for the venue.
通过本课题的研究，力求为青岛市的老年人营造安全、舒适、亲切、和谐的活动场地环境。
Through research of this topic, and strive to create Qingdao elderly safe, comfortable, friendly and harmonious environment for the venue.
通过本课题的研究，力求为青岛市的老年人营造安全、舒适、亲切、和谐的活动场地环境。
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