我们经常听到“海拔”这个词。海拔是以平均海水面做标准的高度。你知道我国的海拔基准点是怎样测量出来的吗？中国的测量高程基准在哪里呢？ 它位于青岛大港1号码头西端青岛观象台的验潮站，其地理坐标为东经120°18′40″，北纬30°05′15″。验潮站有一间特殊的房屋 We often hear the word “altitude.” Elevation is the standard height of average sea level. Do you know how our country's altitude benchmark is measured? Where is China's measurement elevation benchmark? It is located at the tide gauge station of Qingdao Observatory at the western end of No. 1 dock in Dagang, Qingdao. Its geographical coordinates are 120 ° 18'40 “east longitude and 30 ° 05'15” north latitude. Tide station has a special house