结合主成分变换原理和不同的数据处理过程，可以用不同的方式实现土地利用变化信息的自动发现。

Combining the principle of the Principal Component Transform and various data processing methods, automatic detection of land using changing information can be implemented by different methods.

youdao

本文通过一系列变换函数和映射函数，论述了如何将激光扫描尺寸自动检测仪测得的数据转换成棒状图的原理。

This paper is devoted to describe the principle converting the data measured by a laser scanning automatic size detecting device into the bar-form-diagram through a series of transformations.

youdao

建立了12导联同步心电异常波形数据库生成系统，并在此基础上研究了12导联心电图实时分析与基于小波变换的QRS波自动识别算法。

The studies include development of generating system of 12-lead synchronous abnormal ECG waveform database, wavelet based QRS complex detection algorism and waveform analysis.

youdao