铅锌是云南的优势矿产，储量居全国之首。
Yunnan Province has the richest reserves of lead and zinc in the country.
从2004年起，密西西比州的肥胖率连年居全国之首。
Mississippi has had the highest obesity rate every year since 2004.
可供开发利用的潮汐能源达1000万千瓦以上，居全国之首。
The exploitable tidal power hits 10 million KW, ranking top in China.
广东省地中海贫血发病率高居全国之首-每年有3000人患病。
Guangdong has the highest incidence of thalassemia in China - 3,000 are suffering from the illness.
波士顿的独特的文化和历史遗产使它成为旅游中心，其酒店业入住率居全国之首。
Boston's unique cultural and historic heritage makes it a center of tourism, and its hotel industry ranks among the highest in the nation in occupancy.
其中，有14家企业荣获“全国软件正版化工作示范单位”称号，数量居全国之首。
There were14 enterprises granted the title as "National Demonstration entity of Legal Software Application, which ranked first in the whole country."
数据显示，杭州有将近1000家茶馆，位居全国之首，反映出茶馆对杭州人的重要性。
According to statistics, there are nearly a thousand tea houses in Hangzhou, the top position across the country, reflecting the importance of tea houses to Hangzhou people.
沃斯说：“有关儿童和肥胖问题的多数调查表明，南部地区的儿童肥胖率也居全国之首。”
"Most of the studies of obesity and children show the South has the highest rates as well," Vos said.
新疆枸杞生产具有得天独厚的条件，产量质量均居全国之首，但产业化水平不高，深加工和品牌意识都很薄弱。
Xinjiang's wolfberry is ranked to the first place in terms of output and quality for its unique production conditions but industrialized level is low, with weak sense in deep procession and brand.
新疆枸杞生产具有得天独厚的条件，产量质量均居全国之首，但产业化水平不高，深加工和品牌意识都很薄弱。
Xinjiang's wolfberry is ranked to the first place in terms of output and quality for its unique production conditions but industrialized level is low, with weak sense in deep procession and brand.
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