Question

求翻译：论文摘要。谢谢！！

汕头市潮南区饮水型氟中毒病区改水降氟效果分析
【摘要】目的：了解汕头市潮南区饮水型氟中毒改水降氟的效果，为氟病区今后合理规划和改进防治措施提供科学依据。方法：采用随机抽样的方法，测定氟病区村居民饮用水水氟含量及2812名8～12岁儿童氟斑牙患病情况和500名儿童尿氟含量。结果：汕头市潮南区饮水型氟病区改水后，不同改水年限病区村居民饮用水氟含量比改水前都有显著的下降，均低于国家规定的饮用水卫生标准1.0mg/L。改水后，8～12岁儿童氟斑牙患病率已由改水前的62.70%降至15.62%，差异有统计学意义(χ2=4376，P<0．01)。不同改水年限8～12岁儿童尿氟含量在0.360±0.367～0.784±0.658mg/L之间。儿童氟斑牙患病率和儿童尿氟含量均随改水年限的延长呈下降趋势。随改水年限的增加而降低。结论：该氟病区改水成效显著，病情基本得到控制，以改水降氟和健康教育为主的综合防治措施，是防治饮水型地氟病切实可行的措施。

【关键词】 饮水型氟中毒；改水降氟效果；调查分析

Answer 1

翻译：
Shantou ChaoNa area water type fluorosis ward improvement of water decreasing fluorine result is analyzed
[abstract] objective: to know the shantou ChaoNa area water type fluorosis improvement of water decreasing fluorine effect, for fluorine ward reasonable planning and improve in the future to provide scientific basis for prevention and cure measures. Methods: by random sampling method, the determination of fluorine ward village resident drinking water water fluorine content and 2812 8 ~ 12 years old children's dental fluorosis sicken and 500 children urine fluorine content. Results: shantou ChaoNa area water type fluorine ward after improvement of water, different improvement of water of clastic village resident drinking water fluorine content than the improvement of water before a significant drop, all than stipulated by the state and drinking water hygiene standard 1.0 mg/L. Change after water, 8 to 12 years old children fluorotic teeth rates are by improvement of water fell to the 62.70% before 15.62%, difference was statistically significant (χ 2 = 4376, P < 0.01). Different improvement of water of children aged 8 to 12 in urine fluorine content 0.360 + 0.367 ~ 0.784 + 0.658 mg/L between. Children's dental fluorosis rates and children's urine fluorine content linearly with improvement of water of the length of extended to drop. With the improvement of water and decreased with the increasing length of. Conclusion: this fluorine ward outstanding achievement, improvement of water condition has been basically control to change water decreasing fluorine and health education mainly of comprehensive prevention and control measures, and are drinking endemic fluorosis caused feasible measures.

[key words] water type fluorosis, Improvement of water decreasing fluorine effect; A survey and analysis