The research on the fault level of tie line is of significance for the security and stability evaluation of power system as well as the preventive control of transient stability.

研究联络线故障水平对电力系统暂态稳定性的影响，对于电力系统的安全稳定评估与校核，以及暂态稳定预防控制都有着重要意义。

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Based on security and stability evaluation of UHV power grid, the possibility and purpose of the measures are discussed to increase the system security level.

在总体评估特高压同步电网安全稳定性的基础上，探讨进一步利用新技术提高系统安全稳定水平的可能性及效果。

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Based on the proven IEEE 802.11 standard specification for long-term stability, WiGig offers the same level of security and manageability as today's best WLAN technologies.

ENGADGET: Dell ships its WiGig-based Wireless Dock, gives your Latitude a home base for $249 (video)