作文要求:
写一篇关于电脑和人脑差别的文章。
字数要求:
300字以内。
文中过渡词和衔接词使用较少;句式变化多样,句法方面做的很棒;文章高级词汇使用熟练,词汇表达较为丰富。
Iron plate pcb used for a high-end motor,high-end product equipment and motor . It is used on the market widely now. Iron plate pcb exported to Japan,Korea,Taiwan and Canada and other countries , compared to aluminum substrate,it is hardness, manufacturing process and the difficulty will be much larger, generally difficult to master the technology manufacturers, the cost of cost and scrap rate is relatively high.