safety of principal

as benjamin graham defined it, investing requires 'thorough analysis' and 'promises safety of principal and an adequate return. '

正如格雷厄姆（BenjaminGraham）所述，投资需要全面分析并保证本金的安全和充足的回报。

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Tunnel portal is principal part of tunnel structure, it's safety should not be ignored. "

隧道洞门结构是隧道工程主体结构的组成部分,隧道洞门结构的安全问题不容忽视.

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creditors use financial statement analysis to know the safety of principal and the timeliness of interest.

债权人将利用财务报表分析来了解本金的安全性和利息的及时性。

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Tariff audit security risk early warning model by KMO test to verify the electricity checking safety risk for principal component analysis, and principal component analysis method to select the total contribution rate of85% of the index, and the index established a RBF neural network prediction model.

电费审核安全风险预警模型首先通过KMO检验验证了电费审核安全风险适宜作主成分分析，并通过主成分分析方法选择了总贡献率达85%的指标，并以这些指标建立了RBF神经网络预警模型。

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With the premise of system safety and stability, the goal of buying service at lowest cost, based on justice dispatch principal, the method makes good use of market mechanism to induce power plants to supply AGC service initiatively.

交易计划制定方法在保证系统安全稳定的前提下，以三公调度为原则，以全网购买AGC辅助服务费用最低为目标，利用市场机制使发电公司积极提供AGC辅助服务，资源配置。

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