Portfolio investment can help you diversify your risk.

证券投资可以帮助你分散风险。

She has very limited knowledge about portfolio investment.

她对证券投资的了解非常有限。

Through portfolio investment, you can achieve long-term gains.

通过证券投资，你可以获得长期收益。

Portfolio investment requires careful market analysis and research.

证券投资需要仔细的市场分析和研究。

He decided to use part of his savings for portfolio investment.

他决定将部分存款用于证券投资。

In this paper, the portfolio investment model with probability criterion is investigated.

提出一种基于概率准则的新型组合证券投资模型.

Foreign capitals include foreign direct investment, international loan and international portfolio investment.

外资包括外商直接投资 、 国际信贷和国际证券投资.

Portfolio Investment: It covers all international transactions in assets and liabilities.

证券投资。它包括所有资产和负债的国际交易。 。

We discuss the problem of portfolio investment with risk minimization subject to nonnegative investment proportional coefficient.

研究非负投资比例系数约束条件下,实现风险最小化的组合证券投资问题.

The purpose of application of mathematical statistic method to portfolio investment is to lower the risk and obtain the highest income.

应用数理统计方法进行组合证券投资决策，以降低风险获得最高收益。