“flood control of Huaihe River”的概念、定义、翻译、参考文献-科学参考

单词	flood control of Huaihe River
释义	flood control of Huaihe River Encyclopedia 工学〔主要江河防洪〕释 flood control of Huaihe River淮河防洪淮河流域地处南北气候过渡带，洪水灾害频繁。流域性大洪水，常常是干支流洪水遭遇，平原区洪涝并发。其防洪的重点是中下游广大平原区，有淮北平原、里下河、南四湖和沂沭河下游地区。这些地区保护的人口多达4000万～5000万人，保护的农田都在270万～350万公顷。
随便看	sampling process sampling rate sampling ratio sampling scheme sampling space sampling survey Sampling Survey on Professional Awareness and Ethics of Chinese Journalists sampling survey system of crop plantation sampling survey system of crop production sampling survey system of main livestock and poultry farming sampling system sampling technique of continuous random variables sampling technique of discrete random variables sampling technique of random process sampling technique of random vectors sampling test sampling theorem sampling theory sampling unit sampling up-the-ramp sampling with arbitrary probability sampling with equal probabilities sampling with equal probability sampling with non equal probabilities sampling with non-equal probabilities

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