由于周围大气温度的变化，桥梁上部结构产生的温度变形是一个客观存在的事实。
Due to the atmosphere temperature change, the bridge superstructures' thermal deformation exist impersonality which is a fact.
这些大气微粒通过两种途径作用于冰川：首先，悬浮在空气中的微粒吸收太阳光，升高周围空气温度。
These particulates can melt ice in two ways. First, floating in the air, they absorb sunlight and heat the surrounding atmosphere.
这些大气微粒通过两种途径作用于冰川：首先，悬浮在空气中的微粒吸收太阳光，升高周围空气温度。
These particulates can melt ice in two ways. First, floating in the air, they absorb sunlight and heat the surrounding atmosphere.
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