The traditional control method of PFC module in the Online UPS is PID compensation algorithm, which always brings some power swings. Simultaneously, the life of PFC module will be reduced.

传统在线式UPS的PFC模块使用PID补偿算法往往会产生一定程度的输出振荡，当振荡频繁时会严重影响PFC模块的使用寿命。

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Other venture capitalists have been ladling cash into start-ups developing software applications for these online communities.

其他风险投资家已对一些针对这些在线社区开发软件应用的创业者慷慨解囊。

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She has tried everything: online dating, set ups, social clubs like Toastmasters.

她试过很多方式：网上约会，婚介，社交俱乐部，比如英语角等。

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After the world learned that Notre Dame linebacker Manti T'eo's online girlfriend never existed, CNN invited readers to share their own online dating ups and downs.

CNN: SHARE THIS

"I've got so many proposals for bookstores and CD sites on my desk right now, you wouldn't believe, " says Hanson Cheah, a Hong Kong venture capitalist specializing in online start-ups.

CNN: THE E-TAIL REVOLUTION

So cheap have the big, established brokers become that online start-ups such as Kiwoom.com, which opened last month, are struggling to win customers, despite its offer of free trading until the end of June.

ECONOMIST: Korean finance