求翻译：Secondly, a new spectrum is shown in the spectrum viewing area of the page; this illustrates the test spectrum after it has been pre-processed according to the requirements of the model (which can be determined by clicking on the About button for that model). Note that the pre-processing steps required for the model are automatically applied to the original test spectrum as it appears when the spectrum file is opened, i.e. any pre-processing steps that may have been applied in the bottom right Pre-processing pane do not have any bearing on the application of a model是什么意思？

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