I read that it actually took him some 5,000 prototypes to accomplish it though.

我看到报道说他实际上用了大约5000个原型机才把它制作完成。

Area 51 staff had to regularly interrupt such tests and hurry prototypes into "hoot-and-scoot sheds", lest they are detected by Soviet spy satellites.

51区的工作人员不得不经常中断这种测试，匆忙地将这些样机送到“紧急藏身处”，以免它们被苏联间谍卫星发现。

Many critics regard the protagonists in Beckett's novel "Mercier and Camier" as prototypes of Vladimir and Estragon.

许多评论家认为贝克特小说《梅西埃和卡米埃》中的主人公是弗拉基米尔和埃斯特拉贡的原型。

A few prototypes still survive.

有些原型还是留了下来。

But prototypes aren't products.

不过原型毕竟不是产品。

Technique 4: Building prototypes.

技巧4：建立原型。