sandstorm index
常见例句
- It was proved that the established index model could be used to well-explain the distribution pattern of sandstorm frequency in the study region.
建立的气候影响指数模型，能够用来解释当前浑善达克沙地沙尘暴频率的分布格局。 - Air pollution in Beijing reached a high level of 99 on the Air Pollution Index on Friday as a sandstorm from the northwest shrouded the capital in dust, the China News Service reported.
据中国新闻社报道，北京市区13日遭遇了来自西北方的沙尘袭击，当天该市污染指数一度达到99。
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