security margin

An index of risk of contingencies utilizing the time margin of contingency and probability of contingency occurrence is defined, and an index of transient security risk of the system are also defined under certain kind of contingency set.

利用预想事故的时间裕度和发生概率定义了预想事故的风险指标，并定义了度量系统在特定类型事故集合下的暂态安全风险指标，然后据此提出了一种对系统进行暂态安全评估的方法。

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The obtained security margin is available for reference to dispatchers to make decision.

安全裕度指标还可为运行人员提供决策参考.

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In recent years, Chinese government implements the stock index futures, security margin trading and emulation trading of treasury bonds futures as well as options, which lay a solid foundation for quantitative investment.

国内股指期货上市，融资融券业务、国债期货的推出以及期权的筹备，使得量化投资策略的实现有了一定的基础。

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The competition in security industry is getting drastic and the profit margin is getting small.

证券行业的竞争日趋激烈,从暴利走向微利.

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Is the Graham and Dodd "look for values with a significant margin of safety relative to prices" approach to security analysis out of date?

格雷厄姆与多德追求“价值远超过价格的安全保障”，这种证券分析方法是否已经过时？

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