Comments and remarks can even quote precisely part numbers if replacements would be needed 注释和标记甚至还可以准确地引用零件号,如果需要更换零件的话。
2.
Adding comments and remarks enables any technician ( and not just a person who developed the system ) to understand a ladder diagram right away 添加注释和标记可以使技术人员(不仅仅是开发人员)很快理解梯形图。