这里向大家介绍一种处理投影仪胶片的简便方法，通过这种技术处理后的胶片，书写上的字或图案既清晰又不拖墨且能长久保存。首先将常用的普通合成胶水用水（自来水即可）加以稀释（比例约3：1），然后将稀释的胶水均匀地涂抹在胶片上（任意一面），待胶片上的胶水凉干后，便可 Here’s a quick and easy way to handle projector film. With this technology, the words or patterns on the writing are clear, not dragged and long lasting. First of all, the commonly used common synthetic glue water (tap water can be) diluted (ratio of about 3: 1), and then the diluted glue evenly coated on the film (either side), until the glue on the film dry, you can