The surface of plastic objects breaks over time.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 02:07:00
![The surface of plastic objects breaks over time.](/uploads/image/z/12782558-38-8.jpg?t=The+surface+of+plastic+objects+breaks+over+time.)
The surface of plastic objects breaks over time.
The surface of plastic objects breaks over time.
The surface of plastic objects breaks over time.
塑料物件的表面随着时间老化而脆裂