Of special interest is the prediction of extreme events, of the recurrence of states of a certain type and of the crossing of thresholds.

特别有趣的是对极端事件的预测，它们位于某些类型的状态多次出现的时刻，以及临界状态。

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Space tube truss structure is a current structure type at present, its nodes are crossing connected by several steel tubes in different directions.

空间管桁结构是目前流行的结构形式，其节点由多根不同方向的钢管相贯连接。

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As an old bridge type, arch bridge has his characteristic technical superiority such as long crossing ability, economical cost, less cost on Maintenance, and beautiful shape.

拱桥作为一种古老的桥型，具有跨越能力大、造价经济、养护维修费用少、造型美观等特有的技术优势。

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The crossing is described as an "automatic half-barrier" type and the lowering of the barriers is preceded by flashing signals.

BBC: Barriers 'held down longer' in Somerset rail crash

Either type of race takes competitors through terrain so challenging, simply crossing the finishing line is considered a victory.

BBC: A finish line few will cross

With all three vehicles, Arianespace, the company that runs Kourou, will now be able to offer satellite operators a ride for any type of spacecraft to all kinds of orbit - from the low, pole-crossing orbits used by Earth observation missions, to the high, geostationary locations favoured by big telecommunications platforms.

BBC: Vega rocket set for maiden voyage