Maximum,meaning the most. And ion,which is an atom or group of atoms with an electrical charge.

VOA: special.2010.05.30

Most people were able to get the packages to this man and it took at maximum six degrees of separation, which is where the famous phrase comes about that we're all separated from another person by six degrees of separation.

大部分人都能装包裹寄给这个男人,这个过程最多经过六度分隔，著名的六度分隔理论就是这样来的,这个理论是说人与人之间有六度分隔。

耶鲁公开课 - 心理学导论课程节选

The law mandated a minimum 25-cent-per-hour wage, in addition to setting the maximum amount of hours most employees could work per week at 44.

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In 2006, a team led by Mausumi Dikpati of the National Center for Atmospheric Research (NCAR) predicted that the approaching solar maximum would be the most intense in fifty years.

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Most serve a maximum of 15 people and guests eat together around one large table.

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