竖井已经打下，并且挖有横向矿道。Shafts were sunk, with tunnels dug laterally.空气向下进入竖井,因而失去势能.The air flows down to a shaft and thus loses potential energy.潜水员于上周末进入竖井,但没什么进展.Divers headed into the shafts over the weekend but made little...
数以百万计的人们想要新的简化方式实现人机交互。Millions of people want new, simplified ways of interacting with a computer.两种方法可交互使用.The two methods can be used alternately.这些要素的交互作用引人入胜。The interplay between these elements is intriguing....