下面两张照片是直流电作用于植物的对比图，第一张是10月13日拍摄的，第二张9月23日拍摄的，图中上侧植物枯萎的主要原因是十一长假没有浇水，而下侧植物在同样没有浇水的情况下却健康生长。
The following two pictures is applied to plant dc contrast figure, the first one was shot on October 13, the second of September 23, the main reason of the upper plant wilted in the figure is without water at National Day long vacation , and underside of plant in the same under the condition of no water is healthy growth.
