测高学 meaning in Chinese

altimetric
altimetry
hypsography
hypsometry

5 . aviation meteorology : altimetry ; turbulence ; aircraft icing ; route and aerodrome forecasts ; preparation of aviation weather documents
5 .航空气象学：测高学湍流飞机积冰机场天气预报及航线预报编制航空气象文件。
1 . aviation meteorology : altimetry ; turbulence and wind shear ; aircraft icing ; route and aerodrome forecasts ; preparation of aviation weather documents
1 .航空气象学：包括测高学湍流及风切变飞机积冰机场及飞机航线天气预报航空气象文件的编制。