“grass variety degradation”的概念、定义、翻译、参考文献-科学参考

单词	grass variety degradation
释义	grass variety degradation Encyclopedia 农学草品种退化释 grass variety degradation草品种退化草品种的优良性状在经过几代以后，表现逐步减弱以至变劣，甚至有时出现某些预料不到的不良性状的现象。
随便看	learning analytics technique Learning and Development Guideline for Children Aged 3 to 6 Learning and Instruction learning and instructional design learning anxiety learning as a process of enculturation learning as a side effect learning automaton learning behavior learning behavior in rodents learning behavior mechanism learning behavior of livestock learning by analogy learning by analogy, analogy learning learning by design learning by doing learning center activity learning community learning condition learning contract learning control learning control systems learning curve learning cycle learning data mining

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