ALTANA Auto-Chart - Manual (Page 31)

6.7 DOI Spectrum
DOI 谱线
This Excel sheet includes a zone profile (see 6.6) and graphs the structure spectrum together with
LW and SW for each checkzone separately. Two filters per report need to be created. It is rec-
ommended to select not more than 4 checkzones.
在 Excel 表格中包含区域描述（见 6.6）和每个检查区域分别长波，短波结构曲线图。每个报告需要
创建两个筛选条件。建议选择的检查区域不要超过 4 个。
Example:
The horizontal checkzones of a single black car were compared to the average of all black cars:
例如：
单台黑色车的水平检查区域与全部黑色车的平均值进行比对：