本试验主要研究了姜荷花种球大小与其所带贮藏根数对切花品质及子球产量的影响。

This experiment was to study the effect of bulb size with storage roots on cut flowers and daughter bulb prouduction of Curcuma alismatifolia.

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使大豆根数，根瘤数、植株鲜重降低。

The number of roots, number of root nodules, living plant weight also decreased.

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一般喷丝头细孔的数量决定了纱中长丝的根数。

Usually the number of holes in the spinneret determines the number of filament in the yarn.

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So Rituparna tries to prove to him his abilities and he says, see that tree there, I can estimate how many leaves there are on that tree by counting leaves on one branch.

所以睿都巴若那就试图证明自己的能力,他说,看那边的树,我只需数一根枝杈上的叶子,就能估算出树上叶子的总数

耶鲁公开课 - 金融市场课程节选

You have n branches on the tree and you count the number of leaves and sum them up.

一共有n根树枝,你数了叶子的数量然后把他们加起来

耶鲁公开课 - 金融市场课程节选