求翻译：　　将剪下的前盖外层展开图沿诸虚线折弯90°，围成一个五面纸盒，用胶带纸条粘好。再把一片120胶卷黑色衬纸贴在开有圆孔的一面上，用针在圆孔中心衬纸上刺一个小孔，直径约0．4毫米。再在小孔的侧边张贴一纸槽，纸槽内插一硬纸条，既可充当快门，又可保持小孔清洁。是什么意思？

正在翻译，请等待...

正在翻译，请等待...

Will cut the front cover outer layer developed view along the various dashed line knee bend 90°, will encircle five paper carton, will stick with the adhesive tape paper.Again pastes piece of 120 roll film black card middle in opens has the round hole on at the same time, punctures an eyelet with th

Cut the front cover of the outer figure along the dotted lines bent 90 °, and became a five tray, paper tape with tape. Black end papers posted on a 120 roll film having a circular hole on the side, in the Center with a circular hole with a needle puncture a small hole in the end papers, around 0. 4