diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index aac69feaf1..7560e227a1 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -6055,7 +6055,8 @@ void PrintConfigDef::init_fff_params()
 
     def           = this->add("prime_tower_extra_rib_length", coFloat);
     def->label    = L("Extra rib length");
-    def->tooltip  = L("Extra rib length");
+    def->tooltip  = L("Positive values can increase the size of the rib wall, while negative values can reduce the size."
+                       "However, the size of the rib wall can not be smaller than that determined by the cleaning volume.");
     def->sidetext = L("mm");
     def->mode     = comAdvanced;
     def->min      = 0;
diff --git a/src/slic3r/GUI/Preferences.cpp b/src/slic3r/GUI/Preferences.cpp
index 424613ac62..0f0578b7ea 100644
--- a/src/slic3r/GUI/Preferences.cpp
+++ b/src/slic3r/GUI/Preferences.cpp
@@ -1229,7 +1229,7 @@ wxWindow* PreferencesDialog::create_general_page()
     auto item_remember_printer_config = create_item_checkbox(_L("Remember printer configuration"), page, _L("If enabled, Orca will remember and switch filament/process configuration for each printer automatically."), 50, "remember_printer_config");
     auto item_step_mesh_setting = create_item_checkbox(_L("Show the step mesh parameter setting dialog."), page, _L("If enabled,a parameter settings dialog will appear during STEP file import."), 50, "enable_step_mesh_setting");
     auto item_multi_machine = create_item_checkbox(_L("Multi-device Management (Take effect after restarting Orca Slicer)."), page, _L("With this option enabled, you can send a task to multiple devices at the same time and manage multiple devices."), 50, "enable_multi_machine");
-    auto item_mix_print_high_low_temperature = create_item_checkbox(_L("Remove the restriction on high and low temperature mixed printing."), page, _L("With this option enabled, you can print materials with different chamber temperatures together."), 50, "enable_high_low_temp_mixed_printing");
+    auto item_mix_print_high_low_temperature = create_item_checkbox(_L("Remove the restriction on mixed printing of high and low temperature filaments."), page, _L("With this option enabled, you can print materials with a large temperature difference together."), 50, "enable_high_low_temp_mixed_printing");
     auto item_auto_arrange  = create_item_checkbox(_L("Auto arrange plate after cloning"), page, _L("Auto arrange plate after object cloning"), 50, "auto_arrange");
     auto title_presets = create_item_title(_L("Presets"), page, _L("Presets"));
     auto title_network = create_item_title(_L("Network"), page, _L("Network"));