第30 卷 第5 期20 07 年10 月 电子器件Ch inese Jou r nal Of Elect ro n Devices Vol. 30No . 5Oct . 2007Design of a Mult ifunct ional Water ing Device 3GON G Ya2hu an ,WU Gu an g2z hi , FA N L u2j i a( School of El ect ronic Sci ence an d Engi nee ri ng , Sout hea st Uni versi t y , Nanj i ng 210096 , China )Abstract :