constituent content的用法和样例：
例句
- How to identify gushing water sources of mines depending on the content of standard components of ions in the water is a important subject.
如何依据矿井突水的标型组分含量来识别其水源所在的水文地质类别是一个很有意义的课题。 - Results shows that it is of important to online prediction of component content in rare earth separation process by countercurrent extraction.
研究结果对稀土萃取过程组分含量在线测量具有重要意义。
