diff --git a/locales/zh_Hans/main.ftl b/locales/zh_Hans/main.ftl
index 3529033..8e9323a 100644
--- a/locales/zh_Hans/main.ftl
+++ b/locales/zh_Hans/main.ftl
@@ -50,3 +50,4 @@ tr-menu-route-options-wrap-around-bands = 环绕布线
 tr-menu-edit-recalculate-topo-navmesh = 重新计算拓扑导航网格
 tr-menu-view-show-topo-navmesh = 显示拓扑导航网格
 tr-menu-route-options-squeeze-through-under-bends = 推挤弯曲处
+tr-menu-view-kdb-scroll-delta-factor = 键盘滚动增量因子