The double cross shaped inner rings join with main streets to present a fast and convenient transport system.
由井字型快速内环沟通了便捷的经六纬九主城道路交通体系。
It emphasizes when system stability is required, the main protection must be double configuration.
强调指出当系统对稳定性有要求时，主保护必须进行双重化配置。
The subsistent main problems in the double material electricity and hydraulic coexisting DEH system of Zhanjiang power plant 300MW Units are described.
主要介绍了双工质电液并存DEH系统在湛江发电厂300MW机组运行中存在的主要问题。
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