diff --git a/unilabos/devices/liquid_handling/biomek.py b/unilabos/devices/liquid_handling/biomek.py
index ea71c6d..3fe3049 100644
--- a/unilabos/devices/liquid_handling/biomek.py
+++ b/unilabos/devices/liquid_handling/biomek.py
@@ -10,6 +10,7 @@ from pylabrobot.resources import (
     Container,
     Coordinate,
 )
+import copy
 from unilabos_msgs.msg import Resource
 
 from unilabos.ros.nodes.resource_tracker import DeviceNodeResourceTracker  # type: ignore
@@ -61,7 +62,7 @@ class LiquidHandlerBiomek:
                             'LocalPattern': True, 
                             'Operation': 'Aspirate', 
                             'OverrideHeight': False, 
-                            'Pattern': (True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True),
+                            'Pattern': (True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True),
                             'Prototype': 'MC P300 High', 
                             'ReferencedPattern': '', 
                             'RowsFirst': False, 
@@ -450,8 +451,8 @@ class LiquidHandlerBiomek:
         """
         items = []
 
-        asp_params = self.aspirate_techniques.get(aspirate_techniques, {})
-        dis_params = self.dispense_techniques.get(dispense_techniques, {})
+        asp_params = copy.deepcopy(self.aspirate_techniques[aspirate_techniques])
+        dis_params = copy.deepcopy(self.dispense_techniques[dispense_techniques])
 
         asp_params['Position'] = source
         dis_params['Position'] = target
@@ -564,7 +565,7 @@ class LiquidHandlerBiomek:
 
 
 if __name__ == "__main__":
-  
+
     print("=== Biomek完整流程测试 ===")
     print("包含: 仪器设置 + 完整实验步骤")
     
@@ -968,15 +969,6 @@ if __name__ == "__main__":
         "liquid_volume": [],
         "liquid_input_wells": []
     },
-    {
-        "id": "working plate on P12",
-        "parent": "deck",
-        "slot_on_deck": "P12",
-        "class_name": "BCDeep96Round",
-        "liquid_type": [],
-        "liquid_volume": [],
-        "liquid_input_wells": []
-    },
     {
         "id": "working plate on P13",
         "parent": "deck",
diff --git a/unilabos/devices/liquid_handling/biomek_test.py b/unilabos/devices/liquid_handling/biomek_test.py
index 1e56f18..af6339a 100644
--- a/unilabos/devices/liquid_handling/biomek_test.py
+++ b/unilabos/devices/liquid_handling/biomek_test.py
@@ -15,6 +15,7 @@ from typing import List, Sequence, Optional, Union, Literal
 import json
 import pathlib
 from typing import Sequence, Optional, List, Union, Literal
+import copy
 
 
 
@@ -67,7 +68,7 @@ class LiquidHandlerBiomek:
                             'LocalPattern': True, 
                             'Operation': 'Aspirate', 
                             'OverrideHeight': False, 
-                            'Pattern': (True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True),
+                            'Pattern': (True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True, True),
                             'Prototype': 'MC P300 High', 
                             'ReferencedPattern': '', 
                             'RowsFirst': False, 
@@ -351,8 +352,9 @@ class LiquidHandlerBiomek:
         """
         items = []
 
-        asp_params = self.aspirate_techniques.get(aspirate_techniques, {})
-        dis_params = self.dispense_techniques.get(dispense_techniques, {})
+        asp_params = copy.deepcopy(self.aspirate_techniques[aspirate_techniques])
+        dis_params = copy.deepcopy(self.dispense_techniques[dispense_techniques])
+
 
         asp_params['Position'] = source
         dis_params['Position'] = target
@@ -403,7 +405,9 @@ class LiquidHandlerBiomek:
         transfer_params["Solvent"] = 'Water'
         transfer_params["TipLocation"] = tip_rack
         tmp={'transfer': transfer_params}
+       
         self.temp_protocol["steps"].append(tmp)
+        
 
         return
 
@@ -872,15 +876,6 @@ if __name__ == "__main__":
         "liquid_volume": [],
         "liquid_input_wells": []
     },
-    {
-        "id": "working plate on P12",
-        "parent": "deck",
-        "slot_on_deck": "P12",
-        "class_name": "BCDeep96Round",
-        "liquid_type": [],
-        "liquid_volume": [],
-        "liquid_input_wells": []
-    },
     {
         "id": "working plate on P13",
         "parent": "deck",
@@ -968,6 +963,7 @@ if __name__ == "__main__":
         print(f"步骤 {step['step_number']}: {description}")
         
         if operation == 'transfer':
+            
             handler.transfer_biomek(
                 source=parameters['source'],
                 target=parameters['target'],