The transient Angle stability margin and critical clearing time are computed by FASTEST under different proportion of dynamic electric load model using in Henan Power Grid.

以河南电网为例，采用暂态安全定量分析软件FASTEST计算了不同动态负荷模型比例时的暂态功角稳定裕度和临界切除时间。

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The distance between the index value and the critical value of0 indicates the margin of voltage stability.

系统电压稳定指标与临界值0之间的距离反映了系统的电压稳定裕度。

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By using the voltage stability analysis with uncertain factors of load variation considered in computation, more information about the critical point and the minimal power margin will be offered.

考虑负荷变化随机性的电压稳定分析方法可以更多地计及不确定因素，提供更丰富的电压稳定临界点以及最小功率裕度的信息。

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Even though Iomega won the battle of removable storage--it bought out the assets of its main rival, the bankrupt SyQuest , in late 1998--and its Zip drive is a de facto standard for PCs, Porter says the company made a critical error by selling the drives at a low margin, thinking profits would come from the sale of the disks.

FORBES: Iomega Hopes The Music Will Go On

"A critical portion of our energy industry is operating with no margin for error, "U.S. Rep.John Shadegg, R-Ariz.

FORBES: Magazine Article