“geographic vertical”的概念、定义、翻译、参考文献-科学参考

单词	geographic vertical
释义	geographic vertical [¦jē·ǝ¦graf·ik `vǝrd·ǝ·kǝl] ^GEODESY A line perpendicular to the surface of the geoid; it is the direction in which the force of gravity acts. ^MAPPING The direction of a line normal to the surface of the geoid. Also known as map vertical.
随便看	drilling fluid drilling machine drilling mud drilling platform drilling rate drilling time drilling time log drill jig drill jumbo drill log drill out drill-over drill pipe drill point gage drill press drill rod drill runner drill sleeve drill socket drill steel drill stem drill-stem test drill string drill weave Drilonematoidea

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