“the programme for conversion of slope farmland into forest programme”的概念、定义、翻译、参考文献-科学参考

单词	the programme for conversion of slope farmland into forest programme
释义	the programme for conversion of slope farmland into forest programme Encyclopedia 管理学林业发展战略释 the programme for conversion of slope farmland into forest programme退耕还林工程从保护和改善生态环境出发，将水土流失严重的耕地，沙化、盐碱化和石漠化严重的耕地及粮食产量低而不稳的耕地，有计划、有步骤地停止耕种，按照适地适树的原则，因地制宜地植树造林，恢复森林植被的工程。
随便看	precessional constant precessional motion precession circle precession coefficient precession cone precession constant precession frequency precession globe precession in declination precession in latitude precession in longitude precession in right ascension precession method precession of orbit precession of perihelion precession of the earth precession of the equinox precession period precession rate prechamber pre-charge precharge precheck Pre Chin-shih precholecalciferol

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