並前往http://www.w3.pm/-%20Online80/%E2%94%80Electrical%20&%20Mechanical%20Engineering%20%E6%A9%9F%E9%9B%BB%E5%B7%A5%E7%A8%8B/Dry%20Cell%20%E4%B9%BE%E9%9B%BB%E6%B1%A0/%E8%87%BA%E7%81%A3%E9%9B%BB%E6%B1%A0%E5%88%86%E9%A1%9E/
