I had always assumed that the reason a squirrel had a big bushy tail was that as they careened through the space between branches they used it to wave around and keep from tumbling out of control.

我一直以为，松鼠有个毛茸茸的大尾巴，是因为它们摇晃着通过树枝间的空隙时，要摇摆它，以防失控跌倒。

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The multi polar coordinate and complex function are used to put forward an approximate analysis method for scattering of steady P wave around a circular lining in half space.

本文采用多极坐标和复变函数方法针对半无限空间中P波在一衬砌周围的散射问题提出了一种近似求解分析方法。

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Today,Special English broadcasts thirty-minute programs by shortwave and medium wave sixteen times a day around the world.

VOA: special.2009.10.16

Similarly, with the second hydrogen atom, we've got the nucleus in the middle, and the 1 s b wave function around it.

类似的，在第二个氢原子里面，我们在中间有原子核，周围有1sb波函数。

麻省理工公开课 - 化学原理课程节选

Pakistan has experienced a wave of terror attacks, including suicide blasts targeting international and security organizations, coordinated attacks around the country's cultural center,Lahore, and an audacious assault on the army's headquarters near Islamabad.

VOA: standard.2009.10.17

Bush arrived Saturday in Bahrain and was presented with a large saber to wave around on the airport tarmac.

CNN: Traveling with Bush: Bling, strawberry juice and goat brains?

Publishers wave it around like a talisman that has the magic power to make falling ad revenues and shrinking subscriber rolls irrelevant.

FORBES: Attention, Publishers: 'Iconic' Is Not A Business Model

Eviscerating the BOJ as hinted at, would cause an upending of the Yen and an economic shock wave sent around the world.

FORBES: The Economic Wild Cards For 2013