prototype logic operation

例句：

1. 1.The prototype of this design is already in use.
   这个设计的原型已经投入使用。
2. 2. The prototype of the new car was unveiled at the auto show.
   新款汽车的原型在车展上揭幕。
3. 3. The prototype of the new software has been tested extensively.
   新软件的原型已广泛测试。