That alliance was already turbulent before a raid by American special forces killed Osama bin Laden on May 2nd.

在5月2号，美国特别军事行动袭击并击毙奥萨玛•本拉之前，这种军事盟友关系已然动摇，现在更是陷入僵局。

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The relation between global transport properties and the external driving forces is the focus of interest for various turbulent flows and heat transfer.

湍流是极为普遍的流动现象，整体传输特性和外部驱动力之间的关系是各类湍流流动和传热问题研究的中心问题。

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After the turbulent wind forces acted on the bridge is calculated, horizontal and vertical automobile ride comfort is evaluation.

通过对桥梁上作用的脉动风风力的计算，对该桥水平方向和竖直方向的行车舒适性做了综合评价。

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So how is it that Saudi Arabia, a country where all the real power rests with a single family, the Al-Saud, has so far resisted the turbulent forces of the Arab Spring?

BBC: Frank Gardner's return to Saudi Arabia

Days later Muqtada al-Sadr, the turbulent Shia cleric whose forces this month handed the holy cities of Najaf and Karbala back to the central government's control, echoed the call.

ECONOMIST: Iraq

We want to earn our money, give back to society and have a bit of normality during what can sometimes can be a really turbulent time being in the Armed Forces.

BBC: Finding work for the military wives