plastic analysis

例句：

1. 1.The plastic analysis of the waste water showed that it contained a lot of harmful chemicals.
   废水的塑料分析显示它含有大量有害化学物质。
2. 2.The plastic analysis results were published in the scientific journal.
   塑料分析结果在科学杂志上发表。
3. 3.The plastic analysis helps us understand the environmental impact of our products.
   塑料分析帮助我们了解我们产品对环境的影响。