see level elevation

• 海拔高度

see level elevation的用法和样例：

例句

1. Do you know what is the elevation of Mount Everest?
   你知道珠穆朗玛峰的海拔高度是多少吗？
2. Because of the elevation of the lake's surface compared with the river level downstream, a major difference in potential energy exists across a dam.
   因为湖水水面的海拔高度，比下游河水的水面还要高，因此在水坝的两边有较大的位能差异。