Centrifugal compressors anti-surge protection systems are based on the surge Limit Line (SSL).

离心式压缩机防喘振保护系统基于喘振界限线(Surge Limit Line，缩写为ssl)。

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The results show that the compressor performance at low speed is effectively improved and the surge limit is expanded with optimization of the stator vane.

研究结果表明：通过静叶优化，有效地改善了压气机的低转速性能，拓宽了稳定工作边界；

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I found out that you can delete the flyer and re-publish it, and you’ll be able to spend over your daily limit as well as get that initial surge of insane traffic.

经过测试我发现，只要将原来的广告项目删除，重新发布一个广告，就可以突破系统每天50美元广告投放金额的限制，这样，我又可以0.05美元每个单价的点击，从Facebooke获得巨大的流量。

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The regulators are especially worried about trades used by banks or brokerage firms to move bonds off their balance sheets, which would remove the securities from the scrutiny of regulators who are trying to limit the overall surge in domestic credit.

WSJ: China Probe Focuses on Trading of Bonds

"The majority of senators believe the time is now to start drawing down U.S. forces, not just to pre-surge levels but beyond them, and to limit the mission of those remaining to fight al Qaeda, train Iraqis and help protect the borders, " he said.

CNN: 2008 politics woven through Iraq hearings