Schematics are often beautifully rendered, but they're also just as often quick entertaining sketches that appear to have sprung out of the mind of some madcap Professor.

这些设计图通常都经过渲染着色，非常漂亮；但同样也有很多是好玩的草图，这些草稿就像是从哪位鲁莽的教授脑子里跳出来的一样。