frontier distance

• 边界距

frontier distance的用法和样例：

例句

1. A distance education system can support lifelong learning.
   遥距教学能够支援终生学习。
2. The auto-scroll margin is the distance between any child controls and the edges of the scrollable parent control.
   自动滚动边距是任何子控件和可滚动父控件边界之间的距离。