Researchers also calculated a property known as the cross-section, which describes how likely the particle is to interact with others.

研究人员还测算出了一个名为横断面的暗物质的特性，横断面剖析描述了粒子之间相互作用的可能性的大小。

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The Palace Museum in Beijing, also known as the Forbidden City, began a sweeping 2 renovation 3 of a 233-meter-long section of the walls north of the First Historical Archives inside the Xihua Gate.

北京故宫博物院（又称紫禁城）日前启动一项大规模修缮工程，修缮区域为西华门内第一历史档案馆以北一段233米的城墙。

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There are waist and wide teeth in the central section, the larger arc of the curve, known as the "Ocean's belly, " it is also known as the "Ocean's bed.

有束腰且牙条中部较宽，曲线弧度较大的，俗称“罗汉肚皮”，故又称“罗汉床”。

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Such advance-fee frauds are also known as "419 scams" - named after the section of the West African country's criminal code that prohibits fraud.

BBC: NEWS | Africa | Bank scam trial opens in Nigeria

Growing up in the Hollygrove section of New Orleans, Lil' Wayne (Dwayne Carter), also known as Weezy F Baby, Birdman Junior, and Raw Tunes, wrote dozens of gangsta rap hits while still in his teens.

NPR: 'The Great Deluge': A Katrina Post-Mortem