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

单词	perennial cultivated grassland
释义	perennial cultivated grassland Encyclopedia 农学扁蓿豆释 perennial cultivated grassland多年生人工草地采用农业技术措施，用多年生草本植物人为播种建植的草地。
随便看	tangents law tangent space tangent speed tangent sphere tangent sphere bundle tangent-sphere coordinate tangent spheres tangent subbundle tangent subspace tangent surface tangent theorem tangent to a curve tangent transformation tangent-trapezoidal method tangent vector tangent vector bundle tangent vector field tangent vector space Tangerines tangerine seed Tangfeng Tangfeng Ji Tang Geng Tang Gengliang Tang Gengliang narrated and performed a Long Suzhou Pinghua: The Three Kingdoms

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