diff --git a/docs/en/uiflow/advanced.md b/docs/en/uiflow/advanced.md
index c56b4128..555bd880 100644
--- a/docs/en/uiflow/advanced.md
+++ b/docs/en/uiflow/advanced.md
@@ -429,7 +429,7 @@ read ADC
 Set conversion channel
 
 * __write value__
-Write da value
+Write DA value
 
 * __beep with freq duration scale__
 Set the buzzer frequency, time and range
diff --git a/docs/index.md b/docs/index.md
index 1cde3977..a252dff4 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -264,7 +264,7 @@
       "BALA":"Application",
       "Grove-T":"Accessory",
       "CORNER":"Aluminium",
-      "TVOC":"MINI-UNIT"
+      "TVOC/eCO2":"MINI-UNIT"
    };
 
   const mask_btn = `<a href="#" class="quickstart_btn" target='view_window'><button type="button" class="mask-btn1">QuickStart</button></a>`
diff --git a/docs/zh_CN/README.md b/docs/zh_CN/README.md
index fb333dae..9bbcd02a 100644
--- a/docs/zh_CN/README.md
+++ b/docs/zh_CN/README.md
@@ -262,7 +262,7 @@
       "BALA":"Application",
       "Grove-T":"Accessory",
       "CORNER":"Aluminium",
-      "TVOC":"MINI-UNIT"
+      "TVOC/eCO2":"MINI-UNIT"
    };
 
   const mask_btn = `<a href="#" class="quickstart_btn" target='view_window'><button type="button" class="mask-btn1">快速上手</button></a>`
diff --git a/docs/zh_CN/uiflow/advanced.md b/docs/zh_CN/uiflow/advanced.md
index 6e781ffe..6484a101 100644
--- a/docs/zh_CN/uiflow/advanced.md
+++ b/docs/zh_CN/uiflow/advanced.md
@@ -420,7 +420,7 @@ wifi重新连接
 设置转换通道
 
 * __write value__
-写入da值
+写入DA值
 
 * __beep with freq duration scale__
 设置蜂鸣器频率，时间和振幅