研究团队首先在塑料胶卷上蚀刻多层薄的黄铜，这些塑料胶卷能够被缝合在布料上。
The team started by etching thin layers of brass on plastic film, which could be sewed onto a fabric.
本机适用于成型刀模对单层或多层的皮件、橡胶、塑料、硬纸、织物、化纤、无纺布等材料冲裁。
This machine is mainly suitable for cutting varieties of leather rubber, plastic, fabric, etc with a blade of fixed shape.
漂浮房屋的奥秘在于其基底由多层能支撑混凝土的轻塑料泡沫构成，因此能漂浮在水面上。
The secret of such a house lies in its foundations, which are made up of multiple layers of light plastic foam supporting the concrete, allowing it to float.
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