A good way of understanding how rapid protoyping works is to imagine a printer that prints plastic powder instead of ink.
要理解快速原型制作法的原理有个好法子，就是想象打印机使用的不是墨水，而是塑料粉末。
2
Made of stainless steel, wood and plastic, the model incorporates the sleek materials and geometric forms so common in modernist works.
模型由不锈钢、木头和塑料制成，将光滑材料和几何图形融为一体的设计风格在现代设计作品中很常见。
3
For residents, the system works like this: first, they peel off the labels from the empty clear plastic cooking oil bottle and rinse it; next, they fill it with their used cooking oil.