长期的观测显示，主要由冰块构成的土星光环大约形成于1000万至1亿年前，也就是说，相对于已经存在了45亿年之久的太阳系，它们是非常“年轻”的。土星光环中目前的状况就像是在进行一场规模庞大的“雪仗”。
对光环效应进行的后续研究发现，它受第一印象影响非常重要。
Later work on the halo effect suggested that it was highly influenced by first impressions.
同时，实生苗对光环境和水分环境的适应能力优于扦插苗。
Meanwhile, the capacity of accommodation about light and water circumstances of seedlings was higher than that of the cutting stocks.
设计师通过对光环境的塑造，提升了室内空间的格调和氛围。
Designers shape the environment through the light to enhance the interior space of the style and atmosphere.
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