But if that fails, it could be months before a second well is completed, reducing the pressure in the first and thus stemming the flow.

但如果这项措施也失败了，就得花上两个月来依靠二号井来缓解一号井的压力，从而遏制石油的流动。

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The experiment result showed that sinusoidal tube can effectively inhibit second order harmonic mode, increase first order pressure amplitude and lower down heating block temperature.

在一定加热功率下，正弦管能有效抑制系统产生的二阶谐波，提高一阶压力波动幅值并降低加热块温度。

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The first and second derivative plates of concave pressure build-up curve are presented in this paper.

本文提出了凹型压力恢复曲线的一阶导数图版和二阶导数图版。

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It was an authority they had exerted from the first whistle and, despite a spell of South Korean pressure in the second half as they pressed for an equaliser, Argentina were thoroughly deserving of the points.

BBC: Argentina 4-1 South Korea

The pressure is on All-Star shortstop Ian Desmond, second baseman Danny Espinosa and first baseman Adam LaRoche to duplicate their solid seasons from a year ago.

WSJ: MLB 2013: Challengers gear up to take down Giants

But most signs, and the pressure of events, suggest that his second six months in office will prove harder than the first.

ECONOMIST: A puzzling progress