adj.加速的；促进的；催化的
动词accelerate的现在分词形式.
Researchers thought that such precise injection was impossible in a laser wakefield accelerator because the accelerating structure is microscopic and short-lived. 研究人员认为在尾迹场加速器中不可能这麽精准的注入电子，因为加速的过程是微观而且短暂的。
