“grassland biohazard”的概念、定义、翻译、参考文献-科学参考

单词	grassland biohazard
释义	grassland biohazard Encyclopedia 农学草地生物灾害释 grassland biohazard草地生物灾害由草地有害生物（grassland pest）引发的对草地和草产品形成的危害的统称。
随便看	direct sum direct sum decomposition direct sum group direct summand direct sum module direct sum of groups direct sum of ideals direct sum of modules direct sum of objects direct sum of representations direct sum of rings direct sum of sets direct sum of sheaves direct sum of subspaces direct sum representation direct-sum set direct-sum space direct sunlight direct switching direct system direct system of group Direct teaching method direct theorem direct ties direct titration

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