The Global Positioning System (GPS) is able to make a direct or indirect measurement of the sea surface position that is so called GPS altimetry.
GPS测高是利用GPS测量技术以间接和直接的方式测量海平面到椭球面的高度。
The Global Positioning System (GPS) is able to make a direct or indirect measurement of the sea surface position that is so called GPS altimetry.
GPS测高是利用GPS测量技术以间接和直接的方式测量海平面到椭球面的高度。
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