极地涡旋是冬季风形成的一个风系。

The polar vortex is a system of wintertime winds.

《柯林斯英汉双解大词典》

这块塔吉什湖的陨石与太阳系内其他陨石以及小行星形成过程完全相同，即：通过空间中的气体和尘埃涡旋积累形成（这同样是太阳和各个行星的形成过程）。

The Tagish meteor formed the same way all the asteroids and meteors in the solar system formed: accreting out of the primordial swirl of gas and dust that also gave rise to the sun and planets.

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在柱坐标系中，求出了绝对零度情况下近理想玻色气体涡旋态的波函数和能量的近似解析形式。

Approximate analytical solutions of wave function and energy of vortex in the cylindrical coordinates system are obtained for the near-ideal Bose gases at zero temperature.

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