由此，对豆科植物的研究日趋深入。

Hence, the intensified research on legumes.

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刺槐，毛洋槐豆科植物的一种，如毛洋槐。

Any of several other leguminous plants, such as the rose acacia.

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豆科植物的根际比非豆科植物的根际或离根土壤更能刺激根瘤菌的生长。

Legume rhizospheres stimulate more growth of rhizobia than do the rhizospheres of non legumes or soil apart from the roots.

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