diff --git a/source/version_two/introduction/tech_specs/doc.md b/source/version_two/introduction/tech_specs/doc.md
index 5385705..038483b 100644
--- a/source/version_two/introduction/tech_specs/doc.md
+++ b/source/version_two/introduction/tech_specs/doc.md
@@ -62,7 +62,7 @@
 
 |项目|规格|
 |:----|:----|
-|测量距离¹|0.15～10m，6m@10%|
+|测量距离¹|0.15～10m，6m\@10%|
 |重复精度²|±3cm@10m@10Hz|
 |扫描角度|360°|
 |扫描频率³|10Hz|