“grassland degradation in China”的概念、定义、翻译、参考文献-科学参考

单词	grassland degradation in China
释义	grassland degradation in China Encyclopedia 理学中国草地退化释 grassland degradation in China中国草地退化中国天然草地在干旱、侵蚀、盐碱、虫鼠害等不利自然因素和过度放牧等不合理利用影响下，草地生物生产力减少、质量下降、草地利用率降低，甚至失去利用价值的过程。
随便看	Riemannian variety Riemann integrable Riemann integrable function Riemann integral Riemann integral theorem Riemann invariant Riemann-Lebesgue lemma Riemann-Lebesgue theorem Riemann lemma Riemann-Liouville operator Riemann localization theroem Riemann lower integral Riemann mapping theorem Riemann matrix Riemann method Riemann metric Riemann moduli problem Riemann moduli space Riemann nondifferentiable function Riemann non-Euclidean geometry Riemann-Papperitz equation Riemann P-differential equation Riemann period inequality Riemann period relation Riemann P-function

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