实验步骤

• Using powerpoint , this cai narrates briefly and legibly the motive principle equipment and the operation approach when narrating the operation approach in the way of navigation , the software uses words photos of practicality cartoon and combines them organically , such makes the effect be vivid and clear
  该软件采用powerpoint制作，简洁明了地叙述了实验的目的、原理、设备和操作步骤。实验步骤的叙述采用了文字、实物照片、动画等形式相结合，以导航的形式进行，既生动又清晰。