分析了目前五笔字型学习软件的不足之处，提出了改进这种软件的设计方案。
This paper analyzes the defects of popular software on learning WBZX, the important chinese character input method. We propose a scheme for improving the software.
针对这些弊端 ，在传统模拟型同步环结构的基础上 ，提出了一种新的数字型设计方案。
There are some disadvantages in conventional analog synchronizer such as fixed error threshold and fixed step size.
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