diff --git a/dlp-drugtesting-biz/src/main/java/digital/laboratory/platform/inspection/service/impl/TestRecordSampledataExpandServiceImpl.java b/dlp-drugtesting-biz/src/main/java/digital/laboratory/platform/inspection/service/impl/TestRecordSampledataExpandServiceImpl.java
index 141fd0f..6ec4029 100644
--- a/dlp-drugtesting-biz/src/main/java/digital/laboratory/platform/inspection/service/impl/TestRecordSampledataExpandServiceImpl.java
+++ b/dlp-drugtesting-biz/src/main/java/digital/laboratory/platform/inspection/service/impl/TestRecordSampledataExpandServiceImpl.java
@@ -279,6 +279,7 @@ public class TestRecordSampledataExpandServiceImpl extends ServiceImpl<TestRecor
                                 .multiply(BigDecimal.valueOf(100));
                         sampleDataExpand.setIonAbundanceRatioError(ionAbundanceRatioError);
                         if (isNPSCase) {
+                            // 取绝对值的原因是简化逻辑，不然需要判断正负值的范围
                             sampleDataExpand.setIonAbundanceRatioWithinError(
                                     processInspectDataService.getWithinErrorText(
                                             ionAbundanceRatioError.abs(),