【做做】准备一只新的保鲜袋,干燥洁净的泡沫板和手帕各一块,一只带绝缘柄的金属盘,少许轻薄纸屑。把保鲜袋套在泡沫塑料板外,用手帕摩擦保鲜袋使薄膜带电。另将小纸屑放在金属盘上,一手接触金属盘的表面,一手持绝缘柄将金属盘置于塑料袋上。然后将接 [To do] prepare a new storage bag, dry and clean the foam board and handkerchief each, a metal plate with insulated handle, a little light and thin paper scraps. Put the fresh-keeping bag on the outside of the foam plastic plate, and rub the fresh-keeping bag with the handkerchief to charge the film. In addition, the small pieces of paper are placed on a metal plate, and the surface of the metal plate is touched with one hand, and the metal plate is placed on a plastic bag with an insulated handle. Then connect