An electric network for of clear layer, simple structure, standard connection, rational redundancy and appropriate advance technology is set up, "N-1" standard of city network is realized.

建立层次清晰、结构简单、接线规范、冗余度合理、技术适度超前的电网框架，实现城市电网“N - 1”准则。

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The research result shows that advance force and stability ratio N are the main factors controlling …

研究表明，推进力和稳定比N是影响老隧道变形的主要因素。

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Through reformatted the hydraulic pressure system of centrifuge type HR500-N, it increases push force and time of piston to advance the performance of the machine.

通过对原HR500-N 离心机液压系统的改进，使活塞推料力和推料次数增加，促使整机性能提高。

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Mr.Obama spoke in advance of meeting at the U.N. late Wednesday of foreign ministers of the five permanent U.N.Security Council member countries and Germany - the P5+1, who have been trying to re-engage Iran in negotiations on its nuclear program.

VOA: standard.2009.09.23

An advance team of U.N. observers is in Syria to check compliance with the cease-fire, with 30 unarmed monitors expected in the coming days.

CNN: Clinton calls for tougher U.N. steps against Syria

Founded in 1945 in San Francisco, the U.N. was once a magnificent opportunity to advance freedom in the world.

FORBES: League of Human Rights Defenders

There aren't many N-Gage games when compared to the venerable GameBoy Advance, but there are enough to keep you entertained.

ENGADGET: Phone Shopping�� Monday? N-Gage QD