The optimal composition of fiscal expenditure is more important compared with the size of fiscal expenditure when we research economic growth.

财政支出结构政策与总量政策相比具有更重要的一面，它可以在不改变财政支出规模的情况下，提高经济增长率。

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The optimal composition of catalyst layer in proton exchange membrane fuel cell (PEMFC) electrode was prepared through orthogonal method, which is called hydrophilic electrode.

利用正交实验设计法优选出质子交换膜燃料电池(PEMFC)电极催化层制备的最佳条件，即制备亲水电极。

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With A. Carambola L. as the raw material, a natural health beverage containing abundant nutrients was developed by comparing different formulas and finally determining the optimal composition.

以红阳桃为原料，通过不同配方对比试验，确定饮料的配方组成，研制出一种营养丰富的天然功能性保健饮料。

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