“shelterwood cutting”的概念、定义、翻译、参考文献-科学参考

单词	shelterwood cutting
释义	shelterwood cutting Encyclopedia 农学〔森林主伐与更新〕释 shelterwood cutting渐伐在不超过一个龄级期限内，分2～4次伐掉伐区上全部成熟林木的森林主伐方式。又称遮阴木法或伞伐法。
随便看	predicate-argument structure predicate calculus predicate calculus with identity predicate constant predicate data model predicate encryption predicate formula predicate letter predicate logic predicate logic of first order predicate logic of higher order predicate logic of second order predicate logic with equality predicate modification rule predicate of first level predicate of first order predicate of n arguments predicate of n variables predicate of second level predicate of second order predicate symbol predicate transformer predicate transformer semantics predicate/transition system predicate variable

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