| Subject | English | Chinese |
| avia. | class and code catalog | 类别和代码目录 |
| tech. | class code | 分类符 |
| IT | class code | 类别代码 |
| commer. | class code | 分类符号 |
| tech. | class code | 类别符号 |
| fin. | class code or transition class | 分类符号或转折组 |
| logist. | class rate code | 〔空〕等级费率代码 |
| comp., MS | code-behind class | 程式碼後置類別 (A class that is accessed by an .aspx file, but resides in a separate file (such as a .dll or .cs file). For example, you can write a code-behind class that creates an ASP.NET custom server control, contains code that is called from an .aspx file, but does not reside within the .aspx file) |
| avia. | material class and code | 材料类别和代码 |
| avia. | material class and code | 材料等级和代码 |