By using the black? Box model, the variation quantity of COD passing the aeration zone layer is determined.

通过黑箱模型，确定了COD经包气带地层的变化量。

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It is hoped to be useful for reference of deep water zone pile cap construction of bridge pillar by steel box cofferdam.

本文对桥梁主墩承台在深水区施工时，采用钢箱围堰方案施工有借鉴和参考的作用。

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When the train runs slowly, the aerodynamic forces acting on the box car decreases, which is helpful to the train passing safely the bridge of wind zone.

而列车的减速运行，将使棚车所受到的气动力和倾覆力矩降低，有助于棚车安全通过风区桥梁。

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Eric Staal, who less than a minute earlier came out of the penalty box, took a cross-zone pass in the right circle from Pitkanen and fired a quick one-timer that beat Lundqvist for his 14th goal of the season.

WSJ: Miller's SO goal lifts Rangers over Hurricanes

Eric Staal, who less than a minute earlier came out of the penalty box, took a cross-zone pass in the right circle from defenseman Joni Pitkanen and fired a quick one-timer that beat Lundqvist for his 14th goal of the season.

WSJ: Miller's SO goal lifts Rangers over Hurricanes