这种做法可能在理论上听起来很简捷，但在实践中大量各种不同的数据库结构和可能的搜索词构成了一个棘手的计算挑战。
That approach may sound straightforward in theory, but in practice the vast variety of database structures and possible search terms poses a thorny computational challenge.
本文依据可计算性理论，提出了拼音文字非键盘映射编码方法，将整词编码分为输写码与计算码。
With the use of computability theory dividing whole-word coding into two parts: writing-input coding and computational coding, an method of none keyboard mapping for spelling language is proposed.
目前词计算研究还处于初级阶段，还有许多理论研究工作要做。
The research on CWW is still in a primary stage, much research have to be done theoretically.
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