“World Desertification and Drought Prevention Day”的概念、定义、翻译、参考文献-科学参考

单词	World Desertification and Drought Prevention Day
释义	World Desertification and Drought Prevention Day Encyclopedia 工学〔环境日〕释 World Desertification and Drought Prevention Day世界防治荒漠化和干旱日自1995年起，每年6月17日为“世界防治荒漠化和干旱日”。
随便看	differentiation differentiation and integration of science differentiation centre differentiation formula differentiation method differentiation of a generalized function differentiation of a mapping differentiation of microorganisms differentiation of three germ layers differentiation operator differentiation phase Differentiation Strategy differentiation term by term differentiation theory differentiation under the sign of integration differentiation with probability 1 differentiation with respect to a domain differentiation with respect to index differentiator differentio-integral differentional image motion monitor different lines different of a field different of a field extension different of a maximal order

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