发电市场中，长期合约是发电公司与交易中心双方追求效益、规避风险的共同选择。
In power generation market, long-term contract is one of the common and important choices of power generation company and transaction center to pursue benefits and evade risks.
会计信息系统电算化为单位带来效益的同时，也带来了与信息系统的安全性、可靠性相关的风险。
Computerization of accounting information system brings many benefits for organizations. It can also bring the relevant risk to its security and reliability.
使用收益的期望值—标准差无差异曲线与相应的效益函数来描述决策者不同的风险态度；
The indifference curves of expected values and standard deviations of net income are adopted to simulate the different risk attitudes of different decision-makers.
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