Loop network was adopted as common fire-water supplying line for buildings in the terminal area, and this could improve the safety of fire water supply and easy to maintenance.

为了减少室外管网的数量 ，便于日后的维护管理 ，提高消防供水的安全性 ，航站楼区域的消防管网设计为环状的共用消防供水管网。

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Repairing and maintenance of common area electricity supply system, lighting, filter of air-condition and ventilation system.

公用配电装置、电源照明、空调滤网及排风装置等常规的维护及维修。

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Many leases in the healthcare sector are long in duration and triple net, meaning the tenant is responsible for taxes, insurance, and common area maintenance fees.

FORBES: Health Care REITs Should Provide Durable Income in 2013