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单词 grid nephosope
释义 grid nephosope
[`grid `nef·ǝ´skōp]
ENGINEERING
A nephoscope constructed of a grid work of bars mounted horizontally on the end of a vertical column and rotating freely about the vertical axis; the observer rotates the grid and adjusts the position until some feature of the cloud appears to move along the major axis of the grid; the azimuth angle at which the grid is set is taken as the direction of the cloud motion.
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