chemistry ingredients

• 化学组成

chemistry ingredients的用法和样例：

例句

1. Common results of such pollution are changes in the chemistry of the environment.
   通常的结果是这些污染物改变了环境的化学组成。
2. However, for attaching nonpressure parts to pressure parts, the filler metal chemistry shall match the nominal chemistry of the pressure part.
   但将非受压元件焊接受压元件时所用的填充金属，应与受压元件的标称化学组成相配。