Near Surface Reference Temperature?
近表面参考温度NSRT ？
In each position compare the test area with the surface of the reference area.
在每一个位置把测试区域与参考区域的表面做比较。
The earth's surface itself serves as the reference space.
地球表面即可视为基准空间。
The height of a thing above a reference level, especially above sea level or above the earth's surface.
海拔，高度特定水平线上的高度，如太阳或星辰之于地平线之上者；
The height of a thing above a reference level, especially above sea level or above the earth's surface.
海拔，高度特定水平线上的高度，如太阳或星辰之于地平线之上者；
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