由于大量人口居住在火山喷发的潜在路径上，维苏威火山被认为是最危险的火山之一。
Vesuvius is considered one of the most dangerous volcanoes, as large populations lie in the path of potential eruptions.
如果在核废料周围建造一个类似三维深沟的水笼，地下水便被赋予一条替代路径，不会渗入放射性物质。
If a cage of water -- sort of like a three-dimensional moat -- isbuilt around the sealed-off nuclear waste, the groundwater is given analternate path.
从每条路径的折射率——再运用一些适当的计算处理能力——就可以组成一个三维图像。
From the refractive index of each path it is possible-with the application of some suitably crunchy computing power-to produce a three-dimensional image.
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