Radar can be blinded by bad weather, and not all volcanoes are within range of suitable equipment.

恶劣的天气会蒙蔽雷达，且并不是所有的火山都在合适的设备范围内。

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But radar can be blinded by bad weather, and not all volcanoes are within range of suitable equipment.

但是，雷达可以受恶劣天气蒙蔽，也并不是所有的火山都在适当的设备范围内。

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The NEXRAD network of 167 weather radar sites is the foundation of all national weather forecasting.

167个天气雷达站点的NEXRAD网络是所有的国家气象预报的基础。

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I'm one of a number of researchers at NOAA who are working on ways to combine all of the environmental, radar and other weather data into a computer model that will attempt to predict when the tornado will develop and how strong it will be as much as an hour in advance.

CNN: The making of a nightmare tornado

The present weather radar system needs to be upgraded to cover all important catchments of Pakistan.

UNESCO: NATURAL SCIENCES

But radar can be blinded by bad weather, and not all volcanoes are within range of suitable equipment.

ECONOMIST: A new way of protecting planes from the ash from volcanoes