diff --git a/test/experiments/comprehensive_protocol/comprehensive_station.json b/test/experiments/comprehensive_protocol/comprehensive_station.json
index 0dd4f7bd..9af64af3 100644
--- a/test/experiments/comprehensive_protocol/comprehensive_station.json
+++ b/test/experiments/comprehensive_protocol/comprehensive_station.json
@@ -178,12 +178,8 @@
                 "size_z": 0
             },
             "data": {
-                "liquids": [
-                    {
-                        "liquid_type": "DMF",
-                        "liquid_volume": 1000.0
-                    }
-                ]
+                "liquids": [["DMF", 500.0]],
+                "pending_liquids": [["DMF", 500.0]]
             }
         },
         {
@@ -207,12 +203,8 @@
                 "size_z": 0
             },
             "data": {
-                "liquids": [
-                    {
-                        "liquid_type": "ethyl_acetate",
-                        "liquid_volume": 1000.0
-                    }
-                ]
+                "liquids": [["ethyl_acetate", 1000.0]],
+                "pending_liquids": [["ethyl_acetate", 1000.0]]
             }
         },
         {
@@ -236,12 +228,8 @@
                 "size_z": 0
             },
             "data": {
-                "liquids": [
-                    {
-                        "liquid_type": "hexane",
-                        "liquid_volume": 1000.0
-                    }
-                ]
+                "liquids": [["hexane", 1000.0]],
+                "pending_liquids": [["hexane", 1000.0]]
             }
         },
         {
@@ -265,12 +253,8 @@
                 "size_z": 0
             },
             "data": {
-                "liquids": [
-                    {
-                        "liquid_type": "methanol",
-                        "liquid_volume": 1000.0
-                    }
-                ]
+                "liquids": [["methanol", 1000.0]],
+                "pending_liquids": [["methanol", 1000.0]]
             }
         },
         {
@@ -294,12 +278,8 @@
                 "size_z": 0
             },
             "data": {
-                "liquids": [
-                    {
-                        "liquid_type": "water",
-                        "liquid_volume": 1000.0
-                    }
-                ]
+                "liquids": [["water", 1000.0]],
+                "pending_liquids": [["water", 1000.0]]
             }
         },
         {
@@ -368,8 +348,8 @@
                 "has_heater": true
             },
             "data": {
-                "liquids": [
-                ]
+                "liquids": [],
+                "pending_liquids": []
             }
         },
         {
@@ -454,8 +434,8 @@
                 "size_z": 0
             },
             "data": {
-                "liquids": [
-                ]
+                "liquids": [],
+                "pending_liquids": []
             }
         },
         {
@@ -479,8 +459,8 @@
                 "size_z": 0
             },
             "data": {
-                "liquids": [
-                ]
+                "liquids": [],
+                "pending_liquids": []
             }
         },
         {
@@ -694,8 +674,8 @@
                 "size_z": 0
             },
             "data": {
-                "liquids": [
-                ]
+                "liquids": [],
+                "pending_liquids": []
             }
         },
         {
@@ -719,8 +699,8 @@
                 "size_z": 0
             },
             "data": {
-                "liquids": [
-                ]
+                "liquids": [],
+                "pending_liquids": []
             }
         },
         {
@@ -744,8 +724,8 @@
                 "size_z": 0
             },
             "data": {
-                "liquids": [
-                ]
+                "liquids": [],
+                "pending_liquids": []
             }
         },
         {
diff --git a/unilabos/resources/container.py b/unilabos/resources/container.py
index cf6606ea..23b044c7 100644
--- a/unilabos/resources/container.py
+++ b/unilabos/resources/container.py
@@ -1,4 +1,5 @@
 import json
+from typing import Dict, Any
 
 from pylabrobot.resources import Container
 from unilabos_msgs.msg import Resource
@@ -15,9 +16,11 @@ class RegularContainer(Container):
         if "size_z" not in kwargs:
             kwargs["size_z"] = 0
         self.kwargs = kwargs
+        self.state = {}
         super().__init__(*args, **kwargs)
 
-
+    def load_state(self, state: Dict[str, Any]):
+        self.state = state
 #
 # class RegularContainer(object):
 #     # 第一个参数必须是id传入