道路照明系统是城市建设不可缺少的公用设备。

Street lighting system is the absolutely necessary public equipment for the city construction.

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本文探讨了在poy纺丝线改造成t CS生产线时对干燥系统、纺丝设备及公用工程的要求。

The requirements for drying system, spinning equipment and public utilities in the reformation of POY spinning line into TCS line are discussed in this paper.

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对主要的设备、关键的公用设施和系统，还需要开展IQ、OQ和PQ。

Major equipment and critical utilities and systems, however, require IQ, OQ and PQ.

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