Railways, passenger travel has begun to decline, the return flow gradually increased.
铁路方面, 出行客流已开始下降, 返程客流陆续增多.
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Fourly, We deduce relationship between optimal investment timing, net value with return flow and costs.
另外, 还给出投资时点 、 净收益与收益流、成本流的关系.
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Aescin is being used in brain edema, open injuries, swelling after operations, venous return flow diseases.
七叶皂甙用于脑水肿, 创伤或手术后引起的肿胀; 与静脉回流障碍性疾病.
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