“selection of superior stand”的概念、定义、翻译、参考文献-科学参考

单词	selection of superior stand
释义	selection of superior stand Encyclopedia 农学母树林释 selection of superior stand优良林分选择在天然林或人工林分中，依据实际情况比较各林分的优劣，将符合优良标准的林分筛选出来进行利用的群体选择工作。
随便看	positive vector bundle positive vibrating mitigation positive Weyl chamber positive youth development positive zero positivism positivism methodology of psychology positivism policy analysis positivist history positivistic sociology positivist jurisprudence positivity positivity axiom positivity domain positivity property positizable operator positroid boundaries positroid stratification positron positron-annihilation apparatus positron annihilation spectroscopy positron annihilation spectroscopy (PAS) positron annihilation technique positron-annihilation technique positron-electron annihilation

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