Six years of observations revealed the presence of five planets between 13 and 25 times the mass of Earth.

经过长达六年的观测，发现有五颗行星的质量是地球的13-25倍。

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Six years of observations revealed the presence of five planets between 13 and 25 times the mass of Earth, or about the mass of Neptune, that orbit the parent star once every 6 to 600 days.

经过长达六年的观察，科学家发现有五颗行星的质量是地球的13-25倍，或者说，与海王星的质量差不多，它们围绕恒星的旋转周期在6到600天之间。

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Based on my extensive observations of the species, Apple-haters fall into five categories.

基于我本人的广泛观察，苹果痛恨者可以分成五大类。

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By nineteen twenty-five, he had made enough observations to say that the universe is organized into galaxies of many shapes and sizes.

VOA: special.2009.04.29

But I thought it might be useful for me to just take a few minutes to make four or five observations about the trip.

WHITEHOUSE: Press Briefing

Hubble will be released from the orbiter's cargo bay on Tuesday, with the repairs and upgrades that the mission has accomplished promising at least five more years of observations.

BBC: Fifth spacewalk energises Hubble

Flight observations suggested that the oil spill was five times bigger than initial estimates.

ECONOMIST: Politics this week