Mr Waxman's district, West Los Angeles, is the glitziest concentration of wealth on the planet.

至于韦克斯曼所在的西洛杉矶，则是世界上最耀眼的财富中心。

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This paper states the design scheme characteristics of concentration heat - supply engineering replacing oil with coal in Xingbei district of Daqing city and its energy - saving measurements.

本文对大庆杏北地区以煤代油集中供热工程设计的方案特点及所采取的一些主要节能措施进行了论述；

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This paper analyses the change of PM_ (10) mass concentration at Shijingshan District in autumn, and finds that climate change affects PM_ (10) mass concentration greatly.

分析了北京市石景山区秋季PM _(10)质量浓度的变化特征，发现气候变化对PM _(10)质量浓度有很大影响。

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Chicago's central business district has the second-largest concentration of office space in North America.

ECONOMIST: The state of the cities

Across the Kattegat, in Denmark, late at night on November 7th, a gang of about 50 young people went on the rampage on Norrebrogade, a big shopping thoroughfare in a district of Copenhagen with a high concentration of immigrants.

ECONOMIST: Danes on the rampage

Mr Clyburn, who defends his district in federal court next month, has a special interest in ex-servicemen: although he has no military bases in his district, there are several in his state, and his district still has the sixteenth-largest concentration of ex-servicemen in the country.

ECONOMIST: Redistricting