“stand improvement”的概念、定义、翻译、参考文献-科学参考

单词	stand improvement
释义	stand improvement Encyclopedia 农学林分改造释 stand improvement林分改造综合营林的系列措施，即对在组成、林相、郁闭度与起源等方面不符合经营要求的那些产量低、质量差的林分，含各种各类低效林和低价值林分，进行改良和提质、增效的综合营林措施。
随便看	Prout-Tompkins equation provability provability logic provability problem provable formula provable security provable sequent provably recursive function provably secure cryptography proved proved reserves proved reserves life proven provenance provenance analysis provenance of collection provenance protected mode of medicinal resources provenances provenance testing provence lavender in France proventriculus Provençal proverb Proverbs proverbs

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