他的文风清秀,笔致流畅.His writing style is clear , elegant and smooth.全书以轻松的笔致, 写出读者感兴趣的有关旅游的知识.且较强可读性.Light - hearted and readable , book is about tourism knowledge which the readers are interested in....
Through a great deal of effort, this problem has been solved recently by linearization techniques.通过大量的努力, 最近人们利用线性化方法解决了这个问题.The linearization ofnonlinear system with measurable disturbances is studied.研究了一类具有可测干扰的非线性系统...