... protective packing 保护包装 protective ratio 保护比(避雷器的) protective redundancy 保护冗余度 ...
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Protective railings of 58 flyovers were afforested and its afforestation ratio was 40.85%.
共有58座立交桥对防护栏进行了绿化，绿化率为40.85%。
According to request of real time and reliability in national protective relaying signals transmitting standard, the paper discusses how to reduce transmission delay and bit error ratio.
根据国家颁布的继电保护通道标准中对实时性、可靠性方面的要求，重点讨论了如何改善传输时延和误码性能。
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