pre-processing of plate-fin elements

例句：

1. 1.The data needs to be pre-processed before it can be analyzed.
   数据在进行分析之前需要进行预处理。
2. 2. The software is designedfor pre-processing large amounts of data.
   该软件旨在处理大量数据。
3. 3. Pre-processing is an essential step in the dataanalysis process.
   预处理是数据分析过程的一个必要步骤。