操作步骤详解：
1.清洁料槽和离型膜，方便下一步操作；
Clean the resin vat and FEP film to facilitate the next operation
2.使用配套工具拧开螺丝；
Use the matching tools to loosen the screws
3.向外顶，推开固定框和旧离型膜；
Push the retaining frame and the old FEP films away from the top
4.使用酒精清洁料槽和固定框；
Use alcohol to clean the resin vat and fixed frame
5.平整放置新离型膜；
Place the new FEP film flat
6.注意：固定框和料槽对好位置；
Note: the fixed frames and the resin vats are aligned
7.对角安装螺丝，八分紧方便后期调整；
Diagonal mounting screws, easy to adjust it later,when it reachs 80% tight
8.固定好离型膜，再最终拧紧螺丝；
Fix the FEP films, and finally tighten the screws
9.确保底面离型膜平整；
Make sure the bottom of FEP film is flat
10.使用美工刀割去外围多余离型膜；
Use a art knife to cut off the excess FEP films
11.左右固定螺丝孔 离型膜破洞；
Fix the screw holes to avoid holeing in the FEP films
12.离型膜更换完成；
The FEP films are replaced completely.
