空符号的英文

null symbol

• 空:    leave empty or bla ...
• 符号:    character; sign; s ...
• 非空符号:    nonblank symbol

例句与用法

1. Bar code is one kind of sign composed regularly with a group of bars and spaces , which is used to represent the combination information of characters , numbers and symbols
   条码是一组按一定编码规则排列的条、空符号组合，用以表示一定的字符、数字及符号组成的信息。