Back pressure Regulators work well where applications require high precision control of back pressure or relief pressures.

背压调节器的工作以及在应用需要的背压或救济的压力，控制精度高。

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As a result, the regulators hoped, sovereign-bond prices would come back somewhat and banks wouldn't face pressure to sell.

WSJ: European Disunion: Ties That Bound Europe Now Fraying