他们发现环状结构的特点是，无论叶片的哪一部分供给机制被中断，其余部分都有能力输送水和养分。
They found the loops are structured in such a way that no matter which piece of a leaf’s supply mechanism is disrupted, there is usually enough capacity in the rest to distribute water and nutrients.
现金或临时凭证会提供给股东作为资本按比例收益的一部分。
The cash or scrip would be offered as part of a pro rata return of capital to shareholders.
官员们表示，本应提供大部分食物供给的欧盟目前表现得特别小气。
Officials say the EU, which is supposed to provide most of the food needs, is being particularly niggardly.
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