characteristic position的用法和样例：
例句
- The application perspective of wavelet transforms to ECG characteristic points recognition is predicted through the analysis of the results.
通过对结果的分析展望了小波变换的方法在心电图特征点识别中的应用前景。 - The algorithm uses the obtained grey value characteristic point as the searching foundation, which is different from the traditional ergodic search strategy.
该算法利用得出的灰度值特征点作为搜索依据，改变了传统匹配方法遍历性质的搜索策略。
