This design can improve the reliability and timeliness of fire alarm system, reduce the false alarm rate and improve the level of intelligent system.

这一设计可提高火灾报警系统的可靠性与及时性，减少误报率，提高系统的智能化程度。

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Conclusion For consolidating the polio-free, we should raise and keep the higher immunization rate of OPV and keep the sensitivity timeliness and completeness of AFP case surveillance system.

结论为维持无脊灰状态，仍需提高和保持儿童opv的免疫覆盖率，并保持AFP监测系统的敏感性、及时性、完整性。

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