The main negative economic utility of financial service trade is economic security.

中国金融服务贸易自由化负面经济效应主要是经济安全.

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This is the economic utility of the Housing sales site often arise scene.

这是在经济实用房的销售现场时常出现的场景.

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These formulas calculate secondary stresses of truss at high accuracy and good economic utility.

利用这些公式计算了桁架考虑轴向力效应时的次应力,精度高,经济效益好.

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