diff --git a/备课组/26届/校本材料.json b/备课组/26届/校本材料.json
index 9b58f410..0e49e229 100644
--- a/备课组/26届/校本材料.json
+++ b/备课组/26届/校本材料.json
@@ -2980,6 +2980,46 @@
             ],
             "remarks": ""
         },
+        "G20260213": {
+            "id": "G20260213",
+            "name": "三角变换的应用",
+            "filename": "三角变换的应用",
+            "objects": [
+                "K0313001B",
+                "K0313002B",
+                "K0313003B"
+            ],
+            "basicknowledges": [
+                "B00263",
+                "B00264",
+                "B00265"
+            ],
+            "examples_basic": [
+                "018401",
+                "018402",
+                "018403",
+                "018404"
+            ],
+            "work_inclass": [
+                "009576",
+                "009577",
+                "009578"
+            ],
+            "homework": [
+                "021587",
+                "021590",
+                "021591",
+                "021593",
+                "021595",
+                "018405",
+                "018406",
+                "021596",
+                "021597",
+                "021598",
+                "021599"
+            ],
+            "remarks": ""
+        },
         "G20260214": {
             "id": "G20260214",
             "name": "正弦定理",