Finally, how the symbol library is applied is Electronic Chart Displaying and Information System (ECDIS) is introduced and the application results are evaluated in details.
最后，介绍了如何将新的点状符号库应用于现有电子海图系统中，并对应用的效果作了详细的评估。
2
The paper describes symbolic structure of word of program language with regular grammar and regular expression, constructs converted-state chart to identify word symbol.