Negative expander is an important component of lead - acid batteries.
负极膨胀剂是铅酸蓄电池的重要组成部分。
It is a major component in acid rain.
它是酸雨的主要成分。
Is also known as hydroxyl acid, and is the major component of acid rain.
又名氢氧酸，是酸雨的主要组成部分。
Is also known as hydroxyl acid, and is the major component of acid rain.
又名氢氧酸，是酸雨的主要组成部分。
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