It is the third largest planet and has a ring system, which was discovered second to Saturn's.

这是世界第三大的行星，拥有环系统，这是第二次发现的土星。

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Pioneer photographed Saturn 's ring system from a unique position with the Sun behind the planet.

先驱者从一个得天独厚的位置上拍摄了土星的光环系统。其时，太阳正处于该行星的背后。

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Astronomers believe that Saturn's moons play a fundamental role in sculpting its elaborate ring system.

天文学家认为，土星的卫星在光环的形成中扮演着重要角色。

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So, we have a problem here if we're thinking about keeping things at the lowest energy, so there's a lot of ring strain in the system.

现在有个问题,我们考虑要把能量降到最低，所以环上有许多应力。

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ES-1b appears to be surrounded by a massive ring system, like Saturn's but bigger.

ECONOMIST: Astronomers may have found their first Saturn lookalike

Yet scientists are already speculating that this planet may be of a similar size to Jupiter and have its own ring system.

UNESCO: Open Access to Scientific Information

Rather than using rubber hoses to connect the stationary and moving parts of the building, 3sixty's ingenious plumbing system employs horizontal ring-shaped pipes made of steel.

ECONOMIST: Monitor