第十三条洁净室(区)内各种管道、灯具、风口以及其他公用设施，在设计和安装时应考虑使用中避免出现不易清洁的部位。
Article 13: the various pipes, light fixtures, ventilation points and other public facilities in the clean room (area) shall be designed and installed so as to avoid areas being difficult to clean.
第三条住宅区的公共场所和公用设施，由全体业主、承租人和其他非业主使用人共同使用与维护。
Article 3 the public places and public utilities and equipment within the residential quarters shall be used and maintained jointly by all the proprietors, leaseholders and other non-proprietor users.
第三条住宅区的公共场所和公用设施，由全体业主、承租人和其他非业主使用人共同使用与维护。
Article 3 the public places and public utilities and equipment within the residential quarters shall be used and maintained jointly by all the proprietors, leaseholders and other non-proprietor users.
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