刚接触ＤＴ－５０的人，往往为它的多种不同的通道组合方式，以及多层界面的转换而感到不便，使用中常出现信息丢失、修改困难、通道不对等许多麻烦。现将一种简单的画图法介绍给各位同行，请大家一起探讨。先将所要完成的图用计算机或复印机，按所需大小复制的投影胶片上，再 People who are new to DT-50 often find it inconvenient for many different combinations of channels, as well as the transition of multi-layer interfaces. In use, information loss, modification difficulties, and unequal access to channels are often troublesome. Now a simple drawing method introduced to you, please discuss. First to be completed by the computer or copier with the map, copy the desired size of the transparency film, and then