The idea - image , an old and fresh category , with profound and extensive cultural details , includes the idea and image . the idea - image has respective characteristics and differently influences 摘要“意象”是主观情志与外界客观物象相碰撞而契合的产物，指有意味的具体形象，即“意”与“象”的融合，其在文艺创作和文学鉴赏中的作用与地位都是不可忽视的。
Its principle can be outlined as follows : the accelerator produces a beam of fast ions which directs through the foil , because of collisions with the foil atoms the fast ions may undergo further ionization , and they often emerge from the foil in excited electronic states 其原理如下：加速器产生的高能离子束与碳箔相碰撞而失去电子，同时剩余电子被激发到高激发态，在随后的退激过程中发射谱线，通过研究这些谱线可以得到原子的能级结构。
