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And increased development will only exacerbate flooding – concreting over surfaces for housing or car parks prevents rain being absorbed and instead it runs off into drains and rivers which can become overwhelmed and breach defences.，推荐阅读PDF资料获取更多信息

This project began with a simple compass-and-straightedge 'engine', which can be found under the directory cas/.，详情可参考新收录的资料

（五）核技术应用，是指放射性同位素和射线装置等非动力核技术在国民经济和社会发展各领域的应用。

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