阿联酋人工降雨技术：沙漠中造云为雨
The United Arab Emirates is a hot, dry country. It does not rain much there. But scientists found a way to make more rain. They call it cloud seeding.
Cloud seeding starts with clouds. First, scientists fly a plane into the sky. The plane drops tiny salt particles into the clouds. These particles help water droplets grow bigger. When the droplets get heavy, they fall as rain.
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