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1 热补法 先把旧孔处洗净,再剪一块比旧孔稍大一些的同类农膜盖在上面,然后蒙上一层薄纸,用电烙铁在纸上缓慢地移动,接口处受热溶化,冷却后能粘在一起。
1 hot fill first wash the old hole, and then cut a piece of slightly larger than the old hole covered in plastic sheeting, and then covered with a thin layer of paper, using a soldering iron to move slowly on the paper, the interface is heated Melting, cooling can stick together.