null field造句

例句与造句

1. A null field descriptor is the descriptor that forms the blank division in export
   一个空白字段描述符是在输出中形成空格的描述符。
2. There are three ways of representing null fields in xml schema : optional attributes ,
   有三种在xml schema中表示空字段的方法：可选的属性、
3. Large percentages of null fields in a table indicate that there are types of records with different patterns of owned fields
   在桌子的无效的原野的大的百分比显示用拥有的原野的不同的型有记录的型。
4. It's difficult to find null field in a sentence. 用null field造句挺难的