The paper describes symbolicstructure of word of program language with regular grammar and regular expression, constructs converted-state chart to identify word symbol.
用正规文法和正规表达式描述了程序语言的单词符号的结构，用状态转换图构造了识别单词符号。
2
Some symbolic links are present, which link devices to their parents. The hierarchical structure was touched upon above.
也会有一些符号链接，它们把设备链到上级设备那里，级联结构已在上面说明了。
3
His decision in 2009 to take France back into the military command structure of NATO after more than 40 years was of more than symbolic significance.