Have you ever heard of Elwood Haynes? Well, maybe you have heard of some of his inventions: stainless steel, the thermostat, and the horseless carriage.
Have you ever heard of Elwood Haynes? Well, maybe you have heard of some of his inventions: stainless steel, the thermostat, and the horseless carriage.
您听过海恩斯这个名字吗？那麽，也许您曾听过他发明的一些物品，如：不銹钢、恒温器及无马马车。